Q4
Using the data (all values in kilocalorie per mole at 25°C). Given below, calculate the bond energy of C-C and C-H bonds. ∆H0(combustion of ethane) = -372.0 ∆H0(combustion of propane) = -530.0 ∆H0 for C (graphite) → C (g) = +172.0 Bond energy of H–H Bond =+104.0; ∆H0 of H2 O(l)= -68.0 ∆H0f of CO2 (g)= -94.0