Changes Which Affect the Equilibrium (AQA A-Level Chemistry): Flashcards

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Changes Which Affect the Equilibrium
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Factor that affects KcK_c value

Temperature

Effect of concentration changes on KcK_c

No effect

Effect of catalyst on KcK_c

No effect

Increasing temp on exothermic rxn: effect on KcK_c

KcK_c decreases

Decreasing temp on exothermic rxn: effect on KcK_c

KcK_c increases

Increasing temp on endothermic rxn: effect on KcK_c

KcK_c increases

Decreasing temp on endothermic rxn: effect on KcK_c

KcK_c decreases

What catalyst does to forward & reverse reactions

Speeds up both equally

Increasing temp on exothermic: equilibrium shift

Towards reverse reaction

Increasing temp on endothermic: equilibrium shift

Towards forward reaction

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