How much heat must be added to 8.21 g sample of gold to increase its temperature by 6.2°C?

When the gauge pressure of the helium is 0.350 atm, the internal energy of the gas is 1.35 times higher.

We may apply the equation of internal energy for ideal gases since the helium in the balloon is an ideal gas.

where p represents pressure is 1.350atm.

The volume is V it is 11.0L, and the number of moles is n.

The gas constant is R.

T is the gas's actual temperature 1.350 * 11 /nR = 14.85 /nR.

Here are the details for the internal energy helium gas in the balloon:

(The gauge pressure and ambient pressure add up to the total pressure.) is the amplitude

Thus, the temperature may be expressed as 11/nR

Instead, we have what is known as the helium balloon's zero gauge pressure (i.e., at atmospheric pressure).

Between the two temperatures, there is a ratio of 14.85/11 = 1.350

learn more internal energy here :

https://brainly.com/question/25737117

#SPJ4

Answer: 2 and 3

Explanation:II and III

First, we'll suppose that the volume stays the same, with V1 equal to V2.

Pa + 0.400 atm is equal to 1 atm + 0.400 atm, or 1.4 atm, in state 1.

Pa = 1 atm of pressure is present in state 2 (zero gauge pressure).

Now, helium's intrinsic energy is given as

U = 3/2×NkT

U2 = 3/2×N2kT = 3/2×P2V

U2 = 3/2 * 1 * 10^5 * Pa * 9 * 10^(-3)m³ = 1350J

We will now use the ideal gas equation to determine U1.

U1/U2 = (P1*v/kT) / (P2*V/kT) = P1/P2

U1 = P1/P2*U2

U1 = 1.4 atm / 1 atm * 1350 J = 1890J

Consequently, the internal energy of the balloon is more than

1890J - 1350J = 540J

The pressure measured in relation to the surrounding atmospheric pressure is known as gauge pressure. A diaphragm sensor can be used to measure gauge pressure, with one side of the diaphragm exposed to the pressure medium that has to be measured and the other exposed to the surrounding atmospheric pressure.

Absolute pressure is a measurement of pressure that is based on a reference pressure of zero or absolutely no pressure. The only place where a perfect vacuum naturally exists is in space, where there is zero pressure.

To know more about zero gauge pressure, click on the link below:

https://brainly.com/question/13292088

#SPJ4

A chemoautotroph may need to run its electron transport chain backwards to generate reducing power or ATP under certain conditions.

Chemoautotrophs are organisms that obtain energy by oxidizing inorganic compounds. They utilize an electron transport chain (ETC) to transfer electrons and generate energy in the form of ATP. In certain situations, such as when the availability of electron acceptors is limited, a chemoautotroph may need to run its ETC backwards.

Running the ETC backwards allows the chemoautotroph to use alternative electron acceptors, which can be essential for their metabolic processes. This process, known as reverse electron transport, enables the chemoautotroph to generate reducing power or ATP when conventional electron acceptors are scarce or absent. By reversing the flow of electrons, the chemoautotroph can sustain its energy needs and continue essential cellular functions even under challenging environmental conditions.

To learn more about, chemoautotroph , click here, https://brainly.com/question/31181349

#SPJ11

Sun is the centre of the solar system containing 8 planets. Some planets have moons revolving around them. The planet from the sun which a moon is Earth.

Planets are spatial objects formed by gases, soil, and dust and are having a gravitational force. The only living planet is earth. The moon of earth is itself called moon which is revolving around the earth.

In solar system the nearest planet to sun is mercury which have no moons. Next is venus also having no moons. The next planet in the series is earth having one moon.

After earth, mars is closest to sun which have two moons namely Deimos and Phobos. After mars,Jupiter having the highest number of moons and then saturn.

Therefore, the first planet from sun having at least one moon is earth.

To find more about solar system, refer the link below:

https://brainly.com/question/18365761

#SPJ1

Answer:

Explanation:

Answer:,,,,,

Answer: D. Complete Combustion & Balanced

Explanation:

D. Complete Combustion & Balanced

Complete combustion is a type of combustion reaction that occurs when a fuel reacts with oxygen to produce carbon dioxide and water as products. In a complete combustion reaction, the fuel is burned completely and all of the reactants in the reaction are used up.

A balanced reaction means that the number of atoms of each element on the reactant side of the equation is equal to the number of atoms of each element on the product side of the equation. The reaction shown above is balanced, meaning that there are 4 atoms of carbon and 8 atoms of oxygen on the reactant side, and 1 atom of carbon and 2 atoms of oxygen on the product side.

Answer:

D. complete combustion & balanced

Gas laws are the relation between pressure, volume, and temperature of the gas. The relation between the pressure and the volume of the gas is given by Boyle's law.

Boyle's law gives the relation between the pressure and the volume of the gas and states that the pressure is in the inverse relationship with the volume of the gas.

When the pressure of the gas is increased the volume of the gas decreases, similarly the decreased pressure of gas results in an increased volume of gas.

Boyle's law is given as,

\(\rm V = \rm constant (\dfrac{1}{P})\)

and,

\(\rm P_{1}V_{1} = \rm P_{2}V_{2}\)

Boyle's law is only true if the moles of the gas (n) and the temperature (T) of the gaseous system are constant.

Therefore, pressure and volume are in indirect relation and the moles and the temperature are constant in Boyle's law.

Learn more about Boyle's law here:

https://brainly.com/question/1437490

#SPJ1

Answer:

livermorium

Explanation:

The atom with the largest number of neutrons is a tie between livermorium and tennessine. Each of these atoms contain 177 neutrons.

1. Ammonia is a colorless gas with a chemical formula of NH3, when it comes in contact with water, it will be transformed into Ammonium ion and it will produce one hydroxide ion, and this is why Ammonia will present a more basic (pH) behavior, the reaction that represents this behavior is:

NH3 + H2O -> NH4+ + OH-

Number 4 is the only one that represents it well

Number 3 has the same reaction but since there is a plus sign instead of an arrow, I consider it wrong.

The chemical formula \(Al_2SiO_5\) can form the three minerals, andalusite, kyanite, and sillimanite under different combinations of temperature and pressure conditions. Option D is correct.

Learn more about the chemical formula: https://brainly.com/question/11574373

#SPJ11

The Tables that clearly show what you have learned in this lab:

Data is described as a collection of discrete values that convey information, describing the quantity, quality, fact, statistics, other basic units of meaning, or simply sequences of symbols that may be further interpreted.

In most cases,  we can also  use a dichotomous key as it helps in the  classification of  objects by sorting it out with Yes and No questions, until every object is single.

Learn more about data at:

https://brainly.com/question/26711803

#SPJ1

Answer:

Comrade, figures, and sad

Explanation

The solution of sugar, salt etc in water.

Sublimation of substances like iodine, camphor etc into the air.

Hydrated salts, mercury in amalgamated zinc,

Alcohol in water, benzene in toluene

The sulfinator setting should be 9.615 pound per day of sulfur dioxide.

We have to use a few instances of unit conversion to solve this.

Because 1 gallon has 3.786 liters, and the stream is 100 gallons per minute, then in a single minute we are producing:

100 * 3.786 L = 378.6 L of waste

Because each liter of the waste stream contains 8 milligrams of sulfur dioxide, in a single minute we are producing:

378.6 * 8 mg = 3028.8 mg

3028.8 mg = 3.0288 g of sulfur dioxide

Because there are 60 minutes in an hour, each hour we are producing:

60 * 3.0288 g = 181.728 g of sulfur dioxide

Because there are 24 hours in the day, each day we are producing:

24 * 181.728 g = 4361.472 g of sulfur dioxide

Because each 1 lb = 453.592 g, each day we are producing:

4361.472 / 453.592 = 9.615 lbs of sulfur dioxide

You can learn more about sulfur dioxide here:

brainly.com/question/9720549

#SPJ4

Answer:

273k

Explanation:

Soooo... This is a complicated problem.

I dunno. Like... Is this a trick question? Trivia, maybe?

Nahhhhh...

It's just not telling us facts...SOME facts, but we need to use past learning to help us.

FIRST of all, what the heck does K even mean?

Is this a memo? A demo? A KO?

Okay, it's nither of these things.

So, let me tell you what the "K" means.

The K means "Kelvin" which is basically a word form for "-"

I AM NOT MAKING A FACE. IT'S THE WORD FORM FOR MINUS. STOP LAUGHING!!!!

And so... To bring objects to a COMPLEETE SKRRRRRRRRRRRRRRRRRRRRRRT...

It will need to be -273.

This means that the answer is 273k.

Which reminds me, Ima play 2k.

And ima rap to-day.

And now I'm being lame.

Just answer the question :/

Answer:

the second one

Explanation:

because there are 3 of Na and one N

Answer:

I hope this answer is correct

Explanation:

Element having electronic configuration 1s

2

,2s

2

,2p

6

,3s

2

,3p

6

,3d

10

,4s

2

,4p

6

,4d

10

,5s

2

,5p

3

Answer:

The pH scale measures how acidic or alkaline — basic — something is. Your body works constantly to carefully control pH levels of blood and other fluids. The body's pH balance is also called the acid-base or acid-alkaline balance. The right pH levels are needed for good health.

Answer:    Repeating an experiment more than once helps determine if the data was a fluke, or represents the normal case. It helps guard against jumping to conclusions without enough evidence. The number of repeats depends on many factors, including the spread of the data and the availability of resources

I hope this helps ... :)

Answer:

cause too know if it is correct is to try multiple times and if you get the same outcome then the equation or problem is solved

Explanation:

Answer:

It is the wettest layer of the atmosphere.It extends upto 10km upward from sea level.

Answer:

B. Preliminary conclusion

Explanation:

The answer is B because a hypothesis is really an educated guess you make in regards to a question, usually before performing an experiment, so it can't be a preliminary conclusion because you don't really have any solid evidence to support your hypothesis, you only have background information. You will either be able/not be able to support your hypothesis after your expirement has concluded.

The number of moles of CH4 present in 2.45 × 10²³ molecules is 0.41 moles.

The number of moles of a substance can be calculated by dividing the number of molecules by Avogadro's number.

no. of moles = no of molecules ÷ 6.02 × 10²³

According to this question, 2.45×10²³ molecules of CH4 are given. The number of moles is calculated as follows:

no of moles = 2.45 × 10²³ ÷ 6.02 × 10²³

no of moles = 2.45/6.02

no of moles = 0.41moles

Therefore, the number of moles of CH4 present in 2.45 × 10²³ molecules is 0.41 moles.

Learn more about number of moles at: https://brainly.com/question/21494857

Glacial acetic acid is a hazardous chemical that is carcinogenic, flammable, corrosive, and poses health and environmental hazards.

Glacial acetic acid is a clear, colorless, corrosive liquid that can cause severe burns and eye damage upon contact. It is also highly flammable and can pose a fire hazard. Additionally, glacial acetic acid is a known carcinogen, meaning it can cause cancer, and it is harmful if ingested or inhaled. When released into the environment, it can contaminate water and soil, potentially causing harm to aquatic life and plants.

It is important to handle glacial acetic acid with extreme care, using appropriate protective equipment and following proper disposal protocols. In case of accidental exposure, seek immediate medical attention. Proper training and awareness of the risks associated with this chemical can help prevent accidents and ensure a safe workplace.

Learn more about carcinogen here:

https://brainly.com/question/29422741

#SPJ11

Answer:

yo no se nada

Explanation:

solo se que no se nada xd

45.3  Kj is the correct answer

What is energy ?

Energy is a property of matter and radiation that is the ability to do work. It can take many forms, including thermal energy, light energy, mechanical energy, electrical energy, and chemical energy. Energy can be transformed from one form to another but cannot be created or destroyed, according to the law of conservation of energy. Energy is essential for many processes and activities in the natural world, such as photosynthesis in plants, movement of ocean currents, and generation of electricity in power plants. In physics, energy is often described as a scalar quantity and is typically measured in units of joules (J) or electron volts (eV).

q = mCdT = (370g)(4.184J/g/deg)(16.4deg) = 25389J = 25.389 kJ. Since you have 0.560 g of oil, the energy per gram is 25.389 kJ/0.560g = 45.34 kJ/g = 45.3 kJ/g (to 3 sig figs)

1 cal = 4.184 j so hopefully you can convert to calories and kcal etc.

To learn more about the energy , click the given link ; https://brainly.com/question/13881533

#SPJ1

Answer:

Mass number

Explanation:

By using the molar masses of the products obtained in the reaction, we can calculate that the mass P₄O₆ formed is 125.1 g, and the mass of P₄O₁₀ formed is 162.2 g.

If the phosphorus (P) and oxygen (O₂) react completely, then the total mass of the reactants will be equal to the total mass of the products. So, if we label the mass of P₄O₆ as X, and the mass of P₄O₁₀ as Y, we know that:

X + Y = m(P) + m(O₂)

X + Y = 141.3 g + 146.0 g

X + Y = 287.3 g

X = 287.3 g - Y

Now, all the phosphorus has been used in the oxidation reaction. So, if we wanted to calculate the mass of phosphorus in P₄O₆, we would use its molar mass (M = 220 g/mol):

4 * 31 g : 220 g = mass of P in P₄O₆ : X

mass of P in P₄O₆ = 124 * X / 220

mass of P in P₄O₆ = 0.5636 * X

We can do the same for the mass of phosphorus in P₄O₁₀ (M = 284 g/mol):

4 * 31 g : 284 g = mass of P in P₄O₁₀ : Y

mass of P in P₄O₁₀ = 124 * Y / 284

mass of P in P₄O₁₀ = 0.4366 * Y

We know that the total mass of P used is 141.3 g, so:

mass of P in P₄O₆ + mass of P in P₄O₁₀ = 141.3 g

0.5636 * X + 0.4366 * Y = 141.3 g

If we substitute X from the first set of unknowns, we get:

0.5636 * (287.3 g - Y) + 0.4366 * Y = 141.3 g

161.9 g - 0.5636 * Y + 0.4366 * Y = 141.3 g

20.6 g = 0.127 * Y

Y = 20.6 g / 0.127

Y = 162.2 g

X = 287.3 g - 162.2 g

X = 125.1 g

You can learn more about the molar mass here:

brainly.com/question/12127540

#SPJ4

The following statement is true:

Oxygen atoms always have a -2 oxidation state, unless it is in the elemental form O2 when it is 0, or in a peroxide such as H2O2 when it is -1.

This means that in most compounds containing oxygen, the oxygen atom will have an oxidation state of -2, unless it is in its elemental form (O2), in which case its oxidation state is 0. However, in peroxides such as H2O2, each oxygen atom has an oxidation state of -1.