Consider this reaction: Zn (s) + 2HCl (aq) ZnCl2 (aq) + H2 (g). Which change could decrease the rate of production of ZnCl2?

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Jenny Conley

Chemistry

17 April, 14:26

Consider this reaction: Zn (s) + 2HCl (aq) ZnCl2 (aq) + H2 (g). Which change could decrease the rate of production of ZnCl2?

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Alberto Leach · Answer 1

Consider this reaction: Zn (s) + 2HCl (aq) ZnCl2 (aq) + H2 (g). Which change could decrease the rate of production of ZnCl2?

The answer is: increasing the [HCl]

This is supported by the "Le Chatelier's Principle" that states, " If a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium moves to counteract the change."

Increasing the temperature of a system in dynamic equilibrium favours the endothermic reaction. The system counteracts the change you have made by absorbing the extra heat. Decreasing the temperature of a system in dynamic equilibrium favours the exothermic reaction. The system counteracts the change you have made by producing more heat.