Consider a process carried out on 1.00 mol of a monatomic ideal gas by the following pathway from state A to state B. Pathway: A (3.00 atm, 20.0 L) ? B (1.00 atm, 50.0 L) For a monatomic ideal gas Cv = 3/2 R and Cp = 5/2 R. Calculate ?H from state A to state B