The enthalpy of formation of methane `C_(( S))+2H_(2(g)) rarr CH_4(g) ` at constan
Channel: Doubtnut
Date: 2020-06-14

The enthalpy of formation of methane `C_(( S))+2H_(2(g)) rarr CH_4(g) ` at constant pressure is 18500 cal at `25^@ C.` The enthalpy of reaction at constant volume would be