Calculate the heat of combustion (in KJ) of methane from the following data (i) `C (\"graphite\")+2H
Channel: Doubtnut
Date: 2020-02-16

Calculate the heat of combustion (in KJ) of methane from the following data (i) `C (\"graphite\")+2H_(2)(g) rarr CH_(4) (g), DeltaH=-74.8 kJ` (ii) `C (\"graphite\")+O_(2) (g) rarr CO_(2) (g), DeltaH=-393.5 kJ` (iii) `H_(2(g))+1//2O_(2(g)) rarr H_(2)O_((l)), DeltaH=-286.2 kJ`.