The forward reaction in an equilibrium is exothermic. Increasing the temperature will

Answer and explanation

Correct answer: A. shift the equilibrium to the left and decrease Kc

  1. Step 1: Heating favours the endothermic (reverse) reaction, so products decrease and Kc decreases.
Answer
shift the equilibrium to the left and decrease Kc.
Why not the others: shift the equilibrium to the right and increase Kc: this would happen for an endothermic forward reaction. shift the equilibrium to the left and leave Kc unchanged: Kc changes whenever the temperature changes. leave the position unchanged but increase the rate: temperature changes both rate and position.

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