Problem $6$: $(10pts)$ The inlet to a steam turbine receives water at $525.C$ and $2\mathrm{.}75$ MPa $.$

The steam turbine operates such that the specific entropy $(s)$ of the water does

not change between the inlet and the outlet of the turbine. As the operator,

you can control the outlet pressure.

$($a$)$ If you want the outlet temperature to be $150C,$ what should the outlet

pressure be$?$

$($b$)$ If the turbine must operate without any liquid condensation on the tur$-$

bine blades, what is the minimum outlet pressure?