Heat of combustion H° for C(s), H2(g) and CH4(g) are -94, -68 and -213 kcal/mol. Then, H° for 

C(s) + 2H2(g) CH4(g) is                                                                 

(a) -17 kcal/mol                          (b) -111 kcal/mol

(c) -170 kcal/mol                        (d) -85 kcal/mol

Concept Videos :-

#38 | Solved Problems on Thermochemistry: Set 1
#39 | Solved Problems on Thermochemistry: Set 2

Concept Questions :-

Thermochemistry
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