A sample of 1.00 mol perfect gas molecules with Cp,m = 7/2 R is put through the

Question:

A sample of 1.00 mol perfect gas molecules with Cp,m = 7/2 R is put through the following cycle:
(a) Constant-volume heating to twice its initial volume,
(b) Reversible, adiabatic expansion back to its initial temperature,
(c) Reversible isothermal compression back to 1.00 atm. Calculate q, w, ∆U, and ∆H for each step and overall.