Chemistry 9701 · AS & A Level · Chemical energetics

Chemical energetics — practice question

The equation describing the formation of ammonium chloride is given below. $\text{NH}_3(g) + \text{HCl}(g) \rightleftharpoons \text{NH}_4\text{Cl}(s) \quad \Delta H = -314\,\text{kJ mol}^{-1}$. Which diagram represents the correctly labelled reaction pathway diagram for the decomposition of ammonium chloride?

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