Question

. The temperature of an ideal gas increases from 20 ̊C to 40 ̊C while the pressure stays the same. What happens to the volume of the gas?

Answer 1

$pV_1/T_1=pV_2/T_2\to V_1T_2=V_2T_1\to$

$V_2/V_1=T_2/T_1=(273+40)/(273+20)=1.068$

The volume will increase 1.068 times.