$($a$)$ Instead of making approximation with saturated state, use the energy equation to calculate the enthalpy of the liquid entering the boiler. Note that $\backslash ($ w$\_\{$P$\}=-$w$\_\{$C V$\}\backslash )[2$ Pts$]$

$($b$)$ What is the efficiency of this cycle? Note that efficiency is based on net work produced $[7$ Pts$]$

$($c$)$ What is the entropy change before and after the turbine? $[2$ Pts$]$

$($d$)$ Is the turbine reversible? Explain why or why not. $[2$ Pts$]$