For the combustion reaction of ethylene (CâHâ)
CâHâ+ 3Oâ â 2COâ+ 2HâO assume all reactants and products are gases, and calculate the âhâ° rxn using bond energies.
1. 0 kj/mol
2. 251 kj/mol
3. 680 kj/mol
4. â1300 kj/mol
5. â251 kj/mol
6. 1300 kj/mol
7. â680 kj/mol