The heat enthalpy and standard free energy change for the equilibrium: Zn (s) + H _2…

CHEMISTRY · Subjective · AP · Chemistry · Thermodynamics and Electrochemistry · Thermodynamics and Electrochemistry

Problem

The heat enthalpy and standard free energy change for the equilibrium: Zn(s)+H2O(g)⇌ZnO(s)+H2(g)\text{Zn}(s) + \text{H}_2\text{O}(g) \rightleftharpoons \text{ZnO}(s) + \text{H}_2(g) are 224 KJ mol−1224 \text{ KJ mol}^{-1} and 33 KJ mol−133 \text{ KJ mol}^{-1} respectively at the temperature 920 K920 \text{ K}. Calculate the temperature at which equilibrium constant becomes greater than 1. Assume ΔG∘\Delta G^\circ and ΔH\Delta H remains constant.

Related theory

Browse the problem library