The specific enthalpy at states 1 and 4 can be read from the steam tables. The specific enthalpy at state 2 is evaluated
in the solution to Example 8.4. The specific entropy at state 2 can be obtained from the steam tables using the known
values of enthalpy and pressure at this state. In summary, h1 3348.4 kJ/kg, h2 2832.8 kJ/kg, s2 6.8606 kJ/kg K, h4
173.88 kJ/kg.