Now calculate the specific enthalpies of the vapor $($V$)$ and liquid $(L)$ streams of the evaporator with respect to the state of the feed $F$ to the evaporator using the following data for the properties of the evaporator contents.

$)=100C,P=(1(atm)$

widehat$(H{)}_V=,k\frac{J}{k}g$

widehat$(H{)}_L=,k\frac{J}{k}g$

Then use those specific enthalpies to recalculate the mass flow rate of the required steam.

$S^{}=-,k\frac{g}{h}$