Calculate the Volume at this pressure.

In summary, the formula for calculating volume at a certain pressure is V = nRT/P, where V is the volume, n is the number of moles, R is the gas constant, T is the temperature, and P is the pressure. This formula can be used for any type of gas as long as it is in an ideal state. According to Boyle's Law, as pressure on a gas increases, the volume decreases, and according to Charles's Law, as temperature increases, the volume increases. This is due to the behavior of gas particles under different conditions. The formula can be used to calculate the volume at any pressure as long as the other variables are known.
  • #1
wildleaf
25
0
One cubic metre of water is placed under an absolute pressure of 7000 kPa. Calculate the volume at this pressure.

The answer is .99682 but I do not know how to get it. I believe that it has to do with Compressibility and Elasticity.
 
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  • #2
are you sure they are not asking for specific volume? just look under the liquid water tables in your thermo book

thermo.sdsu.edu/testhome/Test/solve/basics/tables/tablesPC/subH2O h t m l
 

1. What is the formula for calculating volume at a certain pressure?

The formula for calculating volume at a certain pressure is V = nRT/P, where V is the volume, n is the number of moles, R is the gas constant, T is the temperature, and P is the pressure.

2. How does pressure affect the volume of a gas?

According to Boyle's Law, as the pressure on a gas increases, the volume decreases, and vice versa. This is because as the pressure increases, the gas particles are forced closer together, resulting in a decrease in volume.

3. Can you calculate the volume at any pressure?

Yes, as long as you know the other variables in the formula (number of moles, gas constant, and temperature), you can calculate the volume at any pressure using the formula V = nRT/P.

4. How does temperature affect the volume of a gas at a certain pressure?

According to Charles's Law, as the temperature of a gas increases, the volume increases, and vice versa. This is because as the temperature increases, the gas particles move faster and take up more space, resulting in an increase in volume.

5. Can you use this formula for any type of gas?

Yes, the formula for calculating volume at a certain pressure can be used for any type of gas as long as the gas is in an ideal state. This means that the gas particles have no volume and do not interact with each other.

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