In a calorimetry experiment

CHEMISTRY · Subjective · A Level · Chemistry · Energetics · Energetics

Problem

In a calorimetry experiment,

46.0\,\text{kJ}

of heat is released when

0.250\,\text{mol}

of the reaction

\text{H}_2(g)+\text{I}_2(g)\rightarrow 2\,\text{HI}(g)

occurs. The average bond energies for

\text{H--H}

and

\text{I--I}

are

436\,\text{kJ mol}^{-1}

and

151\,\text{kJ mol}^{-1}

, respectively. Calculate the average bond energy of the

\text{H--I}

bond, in

\text{kJ mol}^{-1}