In an aniline production plant, reactor product stream containing

nitrobenzene, aniline, water, and hydrogen is to be cooled in a heat

exchanger to dew point temperature. The flow rate of the stream is $255$

kmo$\frac{l}{h}$ and the cooler operates at $1$atm. The composition of the species

and Antoine constants are given in table. Obtain an expression to find dew

point of mixture. DON'T SOLVE, JUST OBTAIN THE EQUATION.

$log{P}^{**}=A-\frac{B}{T+C}$