Question $3($Problem $2\mathrm{.}58$ from $10{?}^{th}$ Edition of Borgnakke and Sonntag $[1])$

$2\mathrm{.}58$ Ammonia in a piston$/$cylinder arrangement is at

$700$ kPa and $80C.$ It is now cooled at constant

pressure to saturated vapor $($state $2),$ at which point

the piston is locked with a pin. The cooling contin$-$

ues to $-10C($state $3).$ Show the processes $1$ to $2$

and $2$ to $3$ on both a $P-v$ and a $T-v$ diagram and find

quality $x_3.$

Show all three state points and the process lines on each graph. Include constant

temperature and pressure lines and label the $P,T$ and $v$ values corresponding to each state.