$3($b$)\_$#$13$: Ammonia enters a throttling valve at $90lb\frac{f}{i}{n}^2$ and exits at $-10F$ with a quality of

$62\%.$

a$)$ What is the pressure, $lb\frac{f}{i}{n}^2,$ at the exit?

b$)$ Determine the quality of the Ammonia at the inlet to the valve? $(55\mathrm{.}25\%)$