For the reaction

$q,HCl(g)+N{H}_3(g)N{H}_{4}Cl(s)$

$G=-78\mathrm{.}9kJ$ and $S=-284\mathrm{.}8\frac{J}{K}at341K$ and $1$atm.

This reaction $is$ favored under standard conditions $at341K.$

The standard enthalpy change for the reaction of $1\mathrm{.}97$ moles of $HCl(g)$ at this temperature would be