$7\mathrm{.}55$ WP Figure P$7\mathrm{.}55$ and the accompanying table provide the schematic and steady$-$state operating data for a flash chamber fitted with an inlet valve that produces saturated vapor and saturated liquid streams from a single entering stream of liquid water. Stray heat transfer and the effects of motion and gravity are negligible. Determine $($a$)$ the mass flow rate, in lb$/$s$,$ for each of the streams exiting the flash chamber and $($b$)$ the total rate of exergy destruction, in Btu $\frac{?}{s}.$ Let $T_O=77F,p_O=1$atm.

$\backslash$table$[[$State$,$Condition,$T(F),p(lb\frac{f}{i}n.{?}^2),h(Bt\frac{u}{l}b),s(Bt\frac{u}{l}b*R)$