A new and relatively unstudied compound is being investigated for potential use as the working fluid in a Rankine heat engine. In the proposed heat engine, the boiler will operate at T = 200°C, with saturated vapor leaving the boiler, and the condenser will operate at T = 40°C, with saturated liquid leaving the condenser. You have access to the following data:

∎ At T = 40°C, the vapor pressure is P^sat = 0.25 bar

∎ At T = 200°C, the vapor pressure is P^sat = 10.0 bar

∎ The ideal gas heat capacity is approximately C_P* = 75 J/mol · K.

∎ The liquid and vapor phases are described by the van der Waals EOS, with a = 4.0 × 10⁷ bar · cm⁶/ mol² and b = 75 cm³/mol.

Assuming the turbine has an efficiency of η = 0.75, give your best estimates of

A. The work produced in the turbine, per mole

B. The work required in the pump, per mole

C. The efficiency of the cycle.