Moist air initially at 1258C, 4 bar, and 50% relative humidity is contained in a 2.5-m3 closed, rigid tank. The tank contents are cooled. Determine the heat transfer, in kJ, if the final temperature in the tank is (a) 1108C, (b) 308C

Answers

Answer 1

To determine the heat transfer in the given scenario, we can use the psychrometric chart and the principles of heat transfer.

(a) For a final temperature of 1108C, we need to cool the moist air inside the tank. As the air cools, its relative humidity will increase. From the psychrometric chart, we can find the change in specific enthalpy (h) between the initial and final states of the air. The heat transfer (Q) can be calculated using the formula:

Q = m * (h2 - h1),

where m is the mass of the air inside the tank.

(b) For a final temperature of 308C, the process involves cooling the air further, causing condensation to occur. This results in the release of latent heat of vaporization. The heat transfer can be calculated using the same formula mentioned above, considering the change in enthalpy due to both sensible and latent heat effects.

To determine the exact value of heat transfer in kJ, we need additional information such as the mass of the air inside the tank and the specific enthalpy values from the psychrometric chart at the given temperatures and pressures.

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Related Questions

Generally, the primary source of all water supply is said to be

Answers

The main sources of water are surface water, groundwater and rainwater.

All of these are part of the seat belt assembly EXCEPT the:
O latch plate
O D-ring
O retractor.
O cushion

Answers

Answer: Cushion
Explanation: All parts going together to form a seat belt except the cushion
The answer is the last one: cushion

A tiger cub has a pattern of stripes on it for that is similar to that of his parents where are the instructions stored that provide information for a tigers for a pattern

Answers

probably in it's chromosomes

look at the following array definition int numbers = 2 4 6 8 10 what will the following state display?

Answers

The statement "numbers[2]" will display the element at index 2 of the array, which is the value 6.

What is the value at index 2 of the array "numbers"?

The provided array definition is incorrect as it is missing the square brackets and commas. To properly define an array in most programming languages, the correct syntax would be:

int[] numbers = {2, 4, 6, 8, 10};

Assuming the correct syntax, the statement "numbers[2]" would display the value at the index 2 of the array, which is 6. In arrays, the indices start from 0, so numbers[0] would be 2, numbers[1] would be 4, and so on.

If the array is defined as mentioned above, accessing numbers[2] would display the value 6.

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Dion Training wants to install a network cable to run a television signal between two buildings. Which of the following cable types should it utilize?
a. Fiber
b. Shielded
c. Coaxial
d. Plenum

Answers

Coaxial cables are metallic cables that are most frequently used to link video equipment and convey television signals. They offer protection from electromagnetic interference, enabling the transmission of low-power communications over greater distances.

Which of the following does a user most frequently utilise to input data into their workstation?

The keyboard, mouse, and touch screen are the three most used input methods.

Which of the following categories of networking equipment is used to send broadband Internet access over a fibre connection to a user's home or workplace?

The high bandwidth of an HFC and RFoG network is utilised to give broadband internet access via cable using cable modems.

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A(n) _____ provides a portable source of light when working on a vehicle.

Answers

Answer:

flashlight???

Explanation:

A circuit is set up with two parallel resistors, each have a resistance of 250Ω. If another resistor with a resistance of 300Ω is added in series with these two parallel resistors, what is the total resistance?

Answers

Answer:

The answer is .....

Explanation:

Sorry sdfghjkl

element a has an electronegativity of 0.8 and element b has an electronegativity of 3.0. which statement best describes the bonding in a3b? a. The AB bond is largely ionic with a - on A.
b. The AB bond is largely ionic with a + on A.
c. The compound is largely ionic with no polar bonds.
d. The compound is largely covalent with no polar bonds.
e. There is insufficient information.

Answers

The best description of the bonding in a3b is option a. the AB bond is largely ionic with a - on A.This statement accurately captures the nature of the bonding, indicating that element a (A) has a partial negative charge (-) due to the transfer of electron(s) to element b.

How is the bonding in a3b described?

The bonding in a3b is largely ionic is suggested by the fact that electronegativity difference between element a (0.8) and element b (3.0) is 2.2, which indicates a significant difference in their ability to attract electrons.

In an ionic bond, one atom (in this case, element b) has a higher electronegativity and tends to attract electrons more strongly than the other atom (element a). As a result, element b will acquire a partial negative charge, indicated by the presence of electron(s) in its outer shell, while element a will have a partial positive charge.

Since element b has a higher electronegativity, it can effectively pull the shared electrons towards itself, resulting in a partial negative charge. On the other hand, element a, with a lower electronegativity, will have a partial positive charge as it loses electron(s) to element b.

Therefore, the best description of the bonding in a3b is a. The AB bond is largely ionic with a - on A.

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Which tool helps you measure the success of your website?

Answers

Answer:

Google AnalYtics.

One of the most popular ways to measure your website is Google Analytics. It's a free tool that measures all the elements we mentioned above, and it even has a comprehensive dashboard that lets you easily analyse and export data.

Basic engine conponents

Answers

An engine is composed of several major components; the block, the crank, the rods, the pistons, the head (or heads), the valves, the cams, the intake and exhaust systems and the ignition system. These parts work together in an exacting manner to harness the chemical energy in gasoline.

The engine block consists of a cylinder block and a crankcase. An engine block can be produced as a one-piece or two-piece unit. The cylinder block is the engine component that consists of the cylinder bore, cooling fins on air-cooled engines, and valve train components, depending on the engine design.

hope this helps

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What does Enter key do?

You cannot click Enter key to start a line if your current is blank?

This is spot to do today

Answers

Answer:

See below

Explanation:

Enter-key also called the "Return key," it is the keyboard key that is pressed to signal the computer to input the line of data or the command that has just been typed.It Was the Return KeyThe Enter key was originally the "Return key" on a typewriter, which caused the carriage to return to the beginning of the next line on the paper. In a word processing or text editing application, pressing Enter ends a paragraph. A character code for return/end-of-line, which is different in Windows than it is in the Mac, Linux or Unix, is inserted into the text at that point.

Answer:

True

Explanation:

Once there are two yellow lines having inner broken lines on the two sides of a center traffic lane, what this is trying to tell you is that you can use those lanes to start a left hand turn, or a U-turn from the both directions of traffic. However you cannot use it for passing. This is sometimes misunderstood by road users and drivers.

Two technicians are explaining what exhaust gas emissions tell you about engine operation. Technician A says that the higher the level of CO2 in the exhaust stream, the more efficiently the engine is operating. Technician B says that CO2 levels of 20 to 25 percent are considered acceptable. Who is correct?
A. Both Technicians A and B
B. Neither Technicians A and B
C. Technician A
D. Technician B

Answers

B.neither technicians A and B

Technicians A is correct in the given scenario. The correct option is C.

What is exhaust gas?

Exhaust gas is a byproduct of combustion that exits the tailpipe of an internal combustion engine.

It consists of a gas mixture that includes carbon dioxide (CO2), carbon monoxide (CO), nitrogen oxides (NOx), hydrocarbons (HC), and particulate matter (PM).

Technician B is mistaken. CO2 levels in the exhaust should be less than 15%, preferably between 13% and 14.5% for petrol engines and 11% to 13% for diesel engines.

High CO2 levels can actually indicate inefficient engine operation, as it means that not all of the fuel in the engine is being burned and is being wasted as exhaust.

Thus, C is the correct answer. A technician is correct.

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why would a chip without pmos transistors be easier to fabricate? what process steps are avoided? give more than one for full credit.

Answers

A chip without PMOS transistor is easier because pMOS transistor would not avaiable to offer a conductive path for a node all the way to the ground voltage.

Microprocessors are constructed out of transistors. In particular, they're built out of metal-oxide-semiconductor (MOS) transistors. There are kinds of MOS transistors — positive-MOS (pMOS) and negative-MOS (nMOS). Every pMOS and nMOS comes prepared with 3 primary components — the gate, the source, and the drain. NMOS and pMOS are the primary types of MOSFET. The primary difference between NMOS and pMOS is that, in NMOS, the source and the drain terminals are made from n-kind semiconductors meanwhile, in pMOS, the source and the drain are made from p-kind semiconductors.

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An organization sets its standards for quality according to the best product it can produce.
True
False

Answers

I believe it’s True, but please correct me if I’m wrong!

Answer:

True!! took the test

Explanation:

When a current carrying coil is placed between the magnetic poles a force acts on it that causes it to rotate what can be done to make the coil rotate faster

Answers

Answer:

increase the field strengthincrease the currentdecrease the moment of inertia of the coil

Explanation:

The rotation speed depends on the force applied to the coil, and on the mass (moment of inertia) of the coil. The force can be increased by ...

  increasing the magnetic field strength

  increasing the coil current

And the moment of inertia can be decreased by ...

  making the coil lighter

  making the coil more compact.

Any of these changes will increase the rotation speed.

Which of the following statements are true about staying safe while
working around all caught-in caught-between hazards?

Select two answers that apply.

What you should do changes based on hazards you’re exposed to.

You should be aware of any hazards that are present

You should be aware of the only hazards indicated as critical by management

What you should do is the exact same no matter the hazard

Answers

Answer:

What you should do changes based on the hazards you're exposed to.

You should be aware of any hazards that are present.

What time ----–- the train arrve? ​​

Answers

I think it’s TIME FOR U TO GET A WATCH !!! lol I’m jk jk I believe it arrives at 12:33

measures irradiation reaching its sensor and is calibrated to indicate the temperature of a blackbody that produces the same flux. a steel billet having a diffuse, gray surface of emissivity 0.8 is heated in a furnace whose walls are at 900 k. a radiation thermometer views the billet through a small hole in the furnace. estimate the actual temperature, in k, of the billet when the radiation thermometer indicates 696 k

Answers

The actual temperature, in k, of the billet when the radiation thermometer indicates 696 k is 999 k.

What is a radiation thermometer?

A subset of instruments called "thermal radiation thermometers" includes infrared thermometers. Infrared thermometers, also referred to as pyrometers or radiation thermometers, are non-contact thermometers that determine a body's temperature based on the thermal radiation it emits.

Although they are excellent for measuring surface temperatures, infrared thermometers do not assess an object's internal temperature. Infrared thermometers are incredibly quick, typically providing a reading in just a fraction of a second, or the time it takes for the processor to complete its calculations.

Distance temperature measurements are made by radiation thermometers. The length can be in miles or a thousandth of an inch. When other types of thermometers are not appropriate, radiation thermometers are frequently used.

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Which option justifies the choice made in the following scenario?

Eli is an environmental engineer. He has recently designed a printer. Instead of plastic, a nonrecyclable material, he has chosen to design the printer using types of metal. It is more costly, but he plans to set up a recycling program where parts from the printer can be reused in the production of future printers.

✔️The material he chose is renewable but will increase costs with his recycling program.
✔️The material he chose is nonrenewable but can be used in future products to reduce costs.
✔️The material he chose is nonrenewable and will increase costs with his recycling program.
✔️The material he chose is renewable and is much better for the environment.

Answers

The fact that Eli plans to set up a recycling program made him choose D. The material he chose is renewable and is much better for the environment.

What is recycling?

It should be noted that recycling simply means the process of collecting and processing materials that can be turned into another product.

Therefore, the material he chose is renewable and is much better for the environment and thus influenced his decision.

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... is an actual sequence of interactions (i.e., an instance) describing one specific situation; a ... is a general sequence of interactions (i.e., a class) describing all possible ... associated with a situation. ... are used as examples and for clarifying details with the client. ... are used as complete descriptions to specify a user task or a set of related system features.

Answers

Answer:

ScenarioUse caseScenariosScenariosUse case

Explanation:

A scenario is an actual sequence of interactions (i.e., an instance) describing one specific situation; a use case is a general sequence of interactions (i.e., a class) describing all possible scenarios associated with a situation. Scenarios are used as examples and for clarifying details with the client. Use cases are used as complete descriptions to specify a user task or a set of related system features.

5. Refrigeration refers to space temperatures that are below

What the correct answer?

Answers

Explanation:

The term refrigeration means cooling a space, substance or system to lower and/or maintain its temperature below the ambient one (while the removed heat is rejected at a higher temperature). In other words, refrigeration is artificial (human-made) cooling.

Refrigeration, is the act of removing undesirable heat from one thing, substance, or space and transferring it to another object, substance, or space.

What is refrigeration?

Refrigeration refers to the process of chilling an area, material, or system in order to decrease and or keep its temperature below that of the surrounding environment.

Refrigeration, sometimes known as chilling, is the act of removing undesired heat from one item, substance, or area and transferring it to another.

The temperature can be lowered by using ice, snow, cooled water, or mechanical refrigeration to remove heat.

Hence,refrigeration, is the act of removing undesirable heat.

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2. When choosing a respirator for your job, you must conduct a
test.
A) Weight
B) Practice
C) Fit
D) Breathing

Answers

Answer: D.) Breathing
Explanation: respirator, like “respiratory” relating to breathing, your respiratory system. Use context skills

Ans. 18).
A push of 180 N and pull of 350 N act simultaneously at a point. Find the resultant of the
forces. if the angle between them (135)

Answers

Explanation:

R = √(A²+B²–2ABCos(x°))

x⁰ = 180–135

x° = 45°

R = √(350²+180²–2(350(180))Cos(45)))

R = 256.524

Redirection and Pipes Unix Questions1. Give a command to run the program "my-program", but redirecting the input from a file called "input.txt" and redirecting the output to a file called "output.txt".2. Using pipes, give a command which lists all of the process identifiers for all processes running on a machine which contain the text "you". The output should be only the process identifiers.

Answers

1. To run "my-program" with input from "input.txt" and output to "output.txt", use the following command:
```my-program < input.txt > output.txt
```

2. To list all process identifiers containing the text "you" using pipes, use this command:
```ps -ef | grep 'you' | awk '{print $2}'
```This command utilizes `ps -ef` to display processes, `grep` to filter processes containing "you", and `awk` to extract and display only the process identifiers.

1. The command to run the program "my-program" while redirecting input from a file called "input.txt" and output to a file called "output.txt" is:

```
$ my-program < input.txt > output.txt
```

This command will take the input from the file "input.txt" instead of the standard input (keyboard) and will redirect the output to the file "output.txt" instead of the standard output (screen).

2. The command to list all the process identifiers for all processes running on a machine that contain the text "you" using pipes is:

```
$ ps -ef | grep "you" | awk '{print $2}'
```

This command will first list all the processes running on the machine using the "ps -ef" command. Then, it will filter out only the processes that contain the text "you" using the "grep" command. Finally, it will use the "awk" command to print only the second field (process identifier) of each matching process.

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2. What is the main job of a cylinder head?
OA. Contain the rapid increase in combustion chamber temperature
OB. Contain the rapid increase in combustion chamber pressure
OC. Prevent engine oil from getting past the pistons
OD. Hold the Head Gasket in place
Grade/Exit

Answers

Answer:

Explanation:

The cylinder head sits on the engine and closes off the combustion chamber. The gap that remains between the cylinder head and the engine is completed by the head gasket. Another task of the cylinder head is to ensure the constant lubrication of the cylinder        

3.13 An A/D converier has an input signal range of 10 V. What is the minimum signal that it can resolve (in mV) if it is (a) a 10-bit converter, (b) an 11-bit converter?

Answers

An A/D converter is used to convert an analog signal to a digital signal. The resolution of the converter is determined by the number of bits that it uses to represent the digital signal. For 10-bit coverter, minimum signal.

What is an A/D converter and explain how the above answer is calculated?

An A/D converter, short for Analog-to-Digital converter, is a device that converts an analog signal, such as a voltage or current, into a digital representation, typically in the form of a digital word.

The digital output of an A/D converter can then be processed, stored, or transmitted by a digital system. A/D converters are commonly used in electronic devices such as computers, smartphones, and scientific instruments to digitize analog signals from sensors or other sources.

They have many application such as audio and video recording, digital signal processing, and communication systems.

(a) A 10-bit converter has 2^10 = 1024 possible values. If the input signal range is 10 V, the minimum signal that it can resolve is 10 V / 1024 = 9.765 mV.

(b) An 11-bit converter has 2^11 = 2048 possible values. If the input signal range is 10 V, the minimum signal that it can resolve is 10 V / 2048 = 4.883 mV.

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given the instruction set for marie: write the assembly language equivalent for the machine instruction: 1000 100000000000 (8800).

Answers

The appropriate machine instruction in assembly language for the Skipcond 800 given the following instruction set.

Is machine code the same as assembly?

The primary distinction between assembly language and machine code is that the latter is a low-level programming language that needs an assembler to translate it into machine code. Machine code, on the other hand, is a language made up of binaries that can be run by computers directly.

Does binary correspond to machine language?

The most basic form of information stored in a computer system is binary information, which is also frequently referred to as machine language. Physically speaking, a computer system's central processing unit stores the 0s and 1s utilizing.

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• Your plants are showing signs of iron deficiency. You check the soil
pH and it is 8.0. What would most likely be the best way to eliminate
the iron deficiency and why?

Answers

If your plants show signs of iron deficiency in them, the best way to eliminate the iron deficiency is by applying a foliar spray and lower the pH.

What is pH?

pH is simply an abbreviation for the power of hydrogen ions and it can be defined as a measure of the molar concentration of hydrogen ions in a particular solution.

This ultimately implies that, a pH can be used to measure and specify the acidity, neutrality or basicity (alkalinity) of any chemical solution. On a pH scale, a chemical solution or substance with a pH of 7 is said to be neutral, a chemical solution with a pH below 7 is acidic and it's basic (alkaline) when it's pH is above 7.

In conclusion, we can infer and logically deduce that if your plants show signs of iron deficiency in them, the best way to eliminate the iron deficiency is by applying a foliar spray and lower the pH.

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Engineering work in the industry requires the application of mathematical theory to solve technical problems through analysis and evaluation. Besides being able to solve technical problems, what is the secondary most important job requirement that an engineer must have in order to compile all data related to that work and communicate it with the customer or other engineering organizations? Elaborate on this aspect of engineering that is as important as technical problem solving

Answers

Answer:

nice info

Explanation:

Can someone please help me the answer is supposed to be A but I don’t know why

Can someone please help me the answer is supposed to be A but I dont know why

Answers

We can see here that the element in the circuit that is possibly a resistor is Element B.

What is a resistor?

A resistor actually known to be a electrical component or device that has two terminals through which current enters and leaves. A resistor is known to limit or regulate the flow of electrical current in an electronic circuit. Resistors are known to be used in order to also provide a kind of specific voltage for a device that is active like a transistor.

Resistors are used in electrical and electronics in order to control the flow of current, reduce current, divide voltages, adjust the level of signals and terminate transmission lines. It is used for other purposes in the electronics field.

We see here that element B selected above is a resistor. The arrow on the head is pointing downward which indicates that current is entering.

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Heather started a race at 7:37 am and finished it at 8:12 am how long did it taker her The price p a book company charges for its most recent book is related to the demand q in weekly sales by the equation 100pq+q = 5,000,000. Suppose the price is set at $40, which would make the demand 1,000 copies per week. a) Using implicit differentiation, compute the rate of change of demand with respect to price, and interpret the result. (Round the answer to two decimal places.) b) Use the result of part (a) to compute the rate of change of revenue with respect to price. Should the price be raised or lowered to increase revenue? Can someone plsss helpppppSpanishAnswer blanks -Find an equation of the line that is parallel to 3x-6y=-1 and passes through (4,-1) write your answer in the form y = mx + b. I cannot do this help me to this complete the sentences. make a passive sentence with get and one of these verbs:-break-sting-use-damage-hurt-steal Please I need help Ill give Brainly Four students were discussing how to find the unit rate for a proportional relationship. Which method is valid?O "Look at the graph of the relationship. Find the y-value of the point that corresponds to x = 1. That value is the unitrate."O "Look at the graph of the relationship. Count the number of units up and the number of units to the right one mustmove to arrive at the next point on the graph. Write these two numbers as a fraction."O "Look at the graph of the relationship. Find the x-value of the point that corresponds to y = 2. That value is the unitrate."O "Look at the graph of the relationship. Find two points which have y-values that are one unit apart. The unit rate is thedifference in the corresponding x-values. total number of households watching the program divided by the total number of households that have access to watching the tv program. Which of the following is NOT an example of good static flexibility?A.doing and holding a splitB.running a mile in six minutesC.holding a ballet position for six minutesD.crossing your ankles behind your head Please help me with this :)If fake answer then will be reported. The molecular weight of table salt, NaCl, is 58. 5 g/mol. A tablespoon of salt weighs 6. 37 grams. Calculate the number of moles of salt in one tablespoon. Next, cancel like terms and units: Which of the following shows the correct terms and units canceled?. After the Civil War had ended, what was one of the issues that needed to be dealt with in orderto unify the country again? A client in shock develops a central venous pressure (cvp) of 2 mm hg. which prescribed intervention should the nurse implement first? What are the 3 main responsibilities of the municipal government? How much money invested at an interest rate of r% per year compounded continuously, will amount to A dollars after t years? (Round your answer to the nearest cent) Please show workA= 200,000 r=6.8 t=11 A car bought for $13,000 depreciates at a rate of 15% per year. Use an exponential function to find the value of the car after 5 years.show work plz i will give you crown whats the sum of 1/6+1/3+1/6 Which had the biggest impact on economic growth in Sumerian city-states? What is the longest wavelength of electromagnetic radiation capable of ionizing this hydrogen atom in an excited state