Sodium carbonate can be prepared by heating sodium bicarbonate. 2 nahco3(s) > na2co3(s) + co2(g) + h2o(g). given that dho = 128.9 kj and dso = 321 j/k·mol for this reaction, at what temperature will k = 1?

T = 401.6 K

Explanation:

Given reaction:

The thermodynamic parameters; ΔG°, ΔH° and ΔS° are related via the Gibbs -Helmholtz equation given as:

For a given reaction, the gibbs free energy change ΔG° is related to the equilibrium constant K as:

It is given that K = 1,

Therefore,

Substituting for ΔG° in equation (1)

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explanation: