C$)(7$marks$)$ Ethanol is produced by the following reaction $C_2{H}_4+H_{2}Olongrightarrow{C}_2{H}_{5}OH$

If the Ethylene and steam enters at $320C$ and ethanol exits at $60C,$ what is $H_{\text{R}\text{e}\text{a}\text{t}\text{t}\text{i}\text{o}\text{n}}$

$\frac{C_P}{R}=A+BT+C{T}^2,R=8\mathrm{.}31\frac{J}{m}$ole.$K$