1.

Given, C+O_2rarrCO_2+94.2 kcal. (i)H_2+1/2O_2rarrH_2O+68.3 kcal (ii)CH_4+2O_2rarrCO_2+2H_2O+210.8 kcal The heat of formation of methane in kcal will be:

Answer»

45.9
47.8
`20.0`
47.3

Answer :C


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