The conditions of a gas change in a steady-flow process from 20oC and 1.000 kPa to 60oC

Question:

The conditions of a gas change in a steady-flow process from 20oC and 1.000 kPa to 60oC and 100 kPa. Devise a reversible nonflow process (any number of steps) for accomplishing this change of state, and calculate ∆U and ∆H for the process on the basis of 1 mol of gas. Assume for the gas that PV / T is constant. CV = (5/2)R. and CP = (7/2)/R.