# Which change in conditions would increase the volume of a fixed mass of gas?

##### 1 Answer

Jun 8, 2018

Increase temperature

#### Explanation:

We can use the Ideal Gas Equation to solve this question:

Hre

#P# is pressure in#"Pa"# #V# is volume in#"m"^3# #n# is number of moles of gas#R# is the universal gas constant,#"8.31 J/K mol"# #T# is temperature in Kelvin

In your scenario, when mass is fixed, the number of moles will be fixed, too. So we can combine both constant terms

where

Now, since we want to work out how volume changes, let's put

So from the equation, we can deduce that in order to increase volume, we can either increase temperature

Hope this helps!