For the reaction : $\mathrm{H}_{2(g)}+\mathrm{Cl}_{2(g)} \rightarrow 2 \mathrm{HCl}$; $\Delta H=-44

Question

For the reaction : $\mathrm{H}_{2(g)}+\mathrm{Cl}_{2(g)} ightarrow 2 \mathrm{HCl}$; $\Delta H=-44 \mathrm{kcal}$\ What is the enthalpy of decomposition of HCl ?\

Professor PC Thomas Classes · Answer

(d): Enthalpy of decomposition of HCl will be
$
\frac{44}{2}=22 \mathrm{kcal} / \mathrm{mol}
$