Determine the enthalpy change and the entropy change of nitrogen per unit mole as it undergoes a

Question:

Determine the enthalpy change and the entropy change of nitrogen per unit mole as it undergoes a change of state from 225 K and 6 MPa to 320 K and 12 MPa,
(a) By assuming ideal-gas behavior and
(b) By accounting for the deviation from ideal-gas behavior through the use of generalized charts.