The volume of a gas is 1.4 L at 31.8°C and 1.31 atm. What volume

will the gas occupy if the temperature is raised to 168.6°C at
constant pressure?

1 answer

since PV=kT, and P is constant, you want V such that
V/(168.6+273.15) = 1.4/(31.8+273.15)
V = 2.028 L