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Sindrei [870]
3 years ago
5

How much work (in J) is involved in a chemical reaction if the volume decreases from 4.35 to 1.20 L against a constant pressure

of 0.822 atm?
Express your answer to three significant figures and include the appropriate units.
Chemistry
1 answer:
Marianna [84]3 years ago
3 0

Answer:

W = -262 J.

Explanation:

Hello there!

In this case, according to the given information, we can recall the definition of work in terms of constant pressure and variable volume as follows:

W=P(V_2-V_1)

So we plug in the given pressure and volumes to obtain:

W=0.822atm(1.20L-4.35L)\\\\W=-2.60atm*L

Now, we convert this number to J (Pa*m³) by using the shown below conversion factor:

W=-2.60atm*L*\frac{101325Pa}{1atm} *\frac{1m^3}{1000L}\\\\W=-262J

Regards!

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Answer:

C- A proton has about the same mass as a neutron .

Explanation:

In an atom such as a carbon atom, the masses of the proton and neutrons are the same.

The mass of the electrons is very negligible.

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The mass of protons and neutrons are similar.

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Why is it important for someone to hold enzymes in their functional shapes
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What is the empirical formula
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2 years ago
How much heat is required to vaporize 25g of water at 100*c
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Answer:

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Explanation:

To convert a water to steam at 100 degree celsius to vapor, we have to give latent heat of vaporization to water

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