Your boss asks you to evaluate a system proposed to him by an associate where a stream of gas undergoes the following steady-state adiabatic process: inlet 130 bar and 800 K, outlet 2 bar and 300 K. Assume the gas at no time condenses to a liquid, has a constant ideal gas heat capacity Cola = 35 J/ K mol, and obeys the equation of state Z = 1 + 2aPT3/2, where a = 11.4 K3/2bar 1 a. What is the amount of shaft work (kJ/mol, with correct sign)? [answer -18.77 kJ/mol] b. For the proposed process to be thermodynamically possible, the change in entropy of the universe must be positive. What is the change in entropy of the universe (J/mol K, with correct sign)? [answer -0.129 J/mol K]