First Law of Thermodynamics+

One mole of Ne gas with VC = 3R/2 undergoes (a) a reversible expansion at constant P = 1 atm from V1 = 20 l to V2 = 40 l and (b) reversible heating at constant V = 15 l in which the pressure changes from P1 = 0.6 atm to P2 = 0.9 atm. For both cases, calculate q, w, ?U and ?H in Joules. Treat the Ne as ideal.