Air at $100\backslash$deg C and $5\mathrm{.}0$ bar is expanded to $1\mathrm{.}0$ bar using a turbine in a steady flow process. If

the temperature of the air at the turbine outlet is $0\backslash$deg C determine: a$)$ the shaft work $($J$/$mol$)$

produced by the turbine; b$)$ the efficiency of the turbine, and; c$)$ the change in entropy $($J$/$molK$)$

of the air. You may assume the heat capacity $($CP $)$ of the air is constant at $29\mathrm{.}2$ J$/$mol K and that

the gas is ideal under all conditions. You may assume the process is adiabatic and

potential$/$kinetic energy changes are negligible