Question

One- half mole of helium is expanded adiabatically from an initial pressure 5atm and atmosphere of 500K to a final of 1atm. Find the temperature, final volume, the work done by the gas and the change in internal energy of the gas.

Answer 1

$T=250~K,$

$V=0.2~m^3,$

$A=1860~J,$

$∆U=2400~J.$