Which factor does affect the equilibrium constant Kc for a reaction?
Correct answer: A. Temperature
- A. Temperature
- B. Pressure
- C. Catalyst
- D. Initial concentrations
Explanation
Changing the temperature shifts the equilibrium position based on whether the reaction is endothermic (absorbs heat) or exothermic (releases heat), according to Le Chatelier's Principle.3 Since the ratio of products to reactants changes, the value of K must also change.
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About Chemical Equilibrium
Reversible reactions reach dynamic equilibrium when forward and reverse rates become equal, and Le Chatelier's principle predicts the effect of changing concentration, pressure or temperature. The chapter also covers solubility product, the common ion effect, buffer action and the conditions used in Haber's process, with equilibrium shifts distinguished from changes in the equilibrium constant.
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