Question

Ethylene on combustion gives CO2 and h20 it's heat of combustion is 1410.0kj/mol.if the heat of formation

Answer 1

Hi,

Following is the naswer to above question

2H2 (g) + (5/2)O2 (g) ----------->CO2 (g) + H2O

Heat of Reaction (Rxn) = -1299kJ/mol

Standard formation [CO2 (g)]= -393.5 kJ/mol

Standard formation [H2O (l)] = -285.8 kj/mol

Hence the heat of formation of the reaction is 226 kJ/mol

Hope the answer helped. Thank you.