Question detail
A reversible reaction at equilibrium is exothermic in the forward direction. If the temperature is increased, predict the effect on the position of equilibrium and explain your reasoning using Le Chatelier's Principle.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Reversible reactions and dynamic equilibrium
Question
A reversible reaction at equilibrium is exothermic in the forward direction. If the temperature is increased, predict the effect on the position of equilibrium and explain your reasoning using Le Chatelier's Principle.
Answer
Increasingthe temperature will shift the equilibrium position to the left, favoringthe endothermicdirection of the reaction. This is because the system will respond to oppose the change by absorbingthe added heat.
Explanation
This question tests the understandingof how temperature changes affect equilibrium positions accordingto Le chatelier's Principle. The answer demonstrates the ability to apply theoretical knowledge to predict outcomes in reversible reactions. This answer is strongest when it stays anchored to The effect of temperature changes on equilibrium (HT only) and directly addresses (HT only) Predict that increasingtemperature favours the endothermicdirection of a reversible reaction.
Common mistake
Misunderstanding Temperature Effects
Students often think that increasing temperature always increases the rate of reaction rather than favoring the endothermic direction of a reversible reaction.
Focus on understanding that increasing temperature shifts equilibrium towards the endothermic direction, which may not always correlate with an increased reaction rate.
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