2.50 moles of an ideal gas with molar heat capacity at constant volume of 12.47 J/Kmol is expanded adiabatically against a constant external pressure of 1.00atm. the initial temperature and pressure of the gas are 52C and 2.50atm., respectively. The final pressure is 1.25atm. For this expansion, calculate and enter answers below: a) Finals temperature (K) of the gas after the expansion b) q in joules c) w in joules d) U in joules e) H in joules