The heats of formation of CO_2, H_2O and C_2H_4 are -94.05, -68.2 and 12.6 K.Cals/ mole, respectively. The heat of combustion of ethylene is

The heats of formation of CO_2, H_2O and C_2H_4 are -94.05, -68.2 and

1.	The heats of formation of CO_2, H_2O and C_2H_4 are -94.05, -68.2 and 12.6 K.Cals/ mole, respectively. The heat of combustion of ethylene is
Answer» 337 K.Cal 212.8 K.Cal `-372` K.Cal `-337` K.Cal ANSWER :D