A hydrochloric acid solution $[8-$molar, SG $\{$:$1\mathrm{.}12,C_p=2\mathrm{.}76\frac{J}{gC}]$ is produced by absorbing hydrogen chloride $HCl(g)$ in water.

Liquid water enters the absorber at $15\mathrm{.}0C$ and gaseous $HCL$ is fed at $20\mathrm{.}0C$ and $790\mathrm{.}0$ torr absolute$.$

Essentially all of the HCL fed to the column is absorbed$.$

Take one liter of product solution as a basis of calculation.

Physical Property Tables

Estimate the heat $(kJ)[$absolute value$]$ that must be transferred from the absorber if the product solution is to emerge at $40\mathrm{.}0C.$

i $kJ($positive$)$

Hint

Assistance Used

The bases can be confusing.

Express enthalpy of the acid solution on a per mole of HCL basis.

Estimate the final solution temperature if the absorber operates adiabatically $($if it did not boil first$).$

$C$

Hint

Assistance Used

For adiabatic operation, $Q=0.$