F$3.$ Pure water at a flow rate of $1500k\frac{g}{?}$ minute at $p=5000$kPa and $T=500K$ is sent to an adiabatic flash

system operating at $p=100$kPa.

a$.$ Is this feed a liquid, a vapor, or a two$-$phase mixture?

b$.$ Find $T_{\text{d}\text{r}\text{u}\text{m}}($in $K),$ and the flow rates $L$ and $V($in $k\frac{g}{m}in)$ leaving the flash drum.