Question

What is the pressure in a 19.2 L cylinder filled with 0.690 mol of nitrogen gas at a temperature of 323 K?

Answer 1

`P=(nRT)/V~=1*atm`

Explanation:

From the Ideal Gas Law,

`P=(nRT)/V=(0.690*mol*xx0.0821*L*atm*K^-1*mol^-1xx323*K)/(19.2*L)`

`~=1*atm`

What is the pressure if we were to change the nitrogen gas to helium gas?