Solve this: Q70 ∆H values for complete combustion of C(s)n H(z)g and CHz(g) are 96, - Chemistry - Chemical Kinetics

Question

Solve this:

Q70 ∆ H ° values for complete combustion of
C(s)n H(z)g and CHz (g)
are –96, – 71 and – 218 Kcal per mole
respectively The ∆ H ° value for the reaction :
C(s) + 2H2 (g) →
CHz (g) is

(a) – 17 Kcal (b) – 81 Kcal

(c) – 20 Kcal (b) – 31 Kcal

Shyam Prasad V · Accepted Answer

I have also tried to solve the problem using z itself and the same equation

Solve this: Q70. ∆ H ° values for complete combustion of C(s)n H(z)g and CHz (g) are –96, – 71 and – 218 Kcal per mole respectively. The ∆ H ° value for the reaction : C(s) + 2H2 (g) → CHz (g) is (a) – 17 Kcal (b) – 81 Kcal (c) – 20 Kcal (b) – 31 Kcal

Solve this:

Q70. $∆ H °$ values for complete combustion of C_(s)n H_(z)g and CH_z _(g) are –96, – 71 and – 218 Kcal per mole respectively. The $∆ H °$ value for the reaction : C_(s) + 2H₂ _(g) $\to$ CH_z _(g) is

(a) – 17 Kcal (b) – 81 Kcal

(c) – 20 Kcal (b) – 31 Kcal