Question

N2(g) + H2(g) → NH3(g)                                    Ammonia production is

N2(g) + H2(g) → NH3(g)                                   

Ammonia production is one example of an industrial product. It is largely used for fertilizers. Since it has great significance, out of curiosity, please calculate

(a) the standard reaction entropy = _______________ J/K.mol. 4 sig. figures normal format (default normal format).

Given:

Smϴ(NH3,g) = 192.45 J/K.mol

Smϴ(N2,g) = 191.61 J/K.mol

Smϴ(H2,g) = 130.68 J/K.mol

ΔfHϴ(NH3,g) = -46.11 kJ/mol

(b) the change in entropy of the surroundings (at 298 K) of the reaction by initially calculating the enthalpy of formation of ammonia.

ΔSsurr = ________________ J/K.mol.

(c) the standard Gibbs energy of the reaction in kJ/mol.

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