Determine the enthalpy change (h) and the entropy change (s) of carbon dioxide per unit mass as

Question:

Determine the enthalpy change (Δh) and the entropy change (Δs) of carbon dioxide per unit mass as it undergoes a change of state from 250 K and 7 MPa to 280 K and 12 MPa,
By assuming ideal-gas behavior
By accounting for the deviation from ideal-gas behavior.