A steady$-$flow adiabatic turbine $($expander$)$ accepts gas at conditions T$1,$P$1,$ and discharges at

conditions T$2,$P$2.$ Assuming ideal gases, determine $($per mole of gas$)$ W$,$ Wideal, Wlost, and SG for following case. Take T$\backslash$sigma $=300$

K$,$ T$1=500$ K$,$ P$1=6$ bar, T$2=371$ K$,$ P$2=1\mathrm{.}2$ bar, Cp$/$R$=7/2$