The volume of the gas : V = 13.243 L
Further explanation
Given
n = 0.25 mole
P = 0.5 atm
T = 50 + 273 = 323 K
Required
The volume
Solution
Ideal gas law
PV=nRT
R = gas constant = 0.082 L.atm/mol K
V = nRT/P
Input the value :
V=0.25 x 0.082 x 323 / 0.5
V = 13.243 L