The entropies of and are 130.6 and 114.6 respectively at 298 K

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

Problem

The entropies of

\text{H}_2(\text{g})

and

\text{H}(\text{g})

are 130.6 and 114.6

\text{J mol}^{-1} \text{ K}^{-1}

respectively at 298 K. Using the data given below calculate the bond energy of

\text{H}_2

(in

\text{kJ/mol}

) :

\text{H}_2(\text{g}) \rightarrow 2\text{H}(\text{g})

;

\Delta G^\circ = 406.62 \text{ kJ/mol}