Estimate for

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

Problem

Estimate

\Delta H

for

2\text{C}_4\text{H}_{10} \longrightarrow \text{C}_8\text{H}_{18} + \text{H}_2

. Given bond energy of C—C, C—H are 347.3 and 414.2

\text{kJ mol}^{-1}

. The heat of formation of H-atom is 217.55

\text{kJ mol}^{-1}