Your company has just developed a new refrigeration process. This process uses a secret gas, called Gas A. You are told that you need to come up with thermodynamic property data for this gas. The following data have already been obtained for the superheated vapor:

As accurately as you can, come up with a value for s in the table above. Clearly indicate your approach and state any assumptions that you make. Do not assume ideal gas behavior.

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T [C] 80 100 v[m/kg] 0.16270 0.17389 P = 10 bar S [kJ/(kg K)] 5.4960 v[m/kg] 0.13387 0.14347 P = 12 bar s [kJ/(kg K)] ?