Question detail
When the temperature of a system at equilibrium is decreased, which of the following statements is true regarding the reaction?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Reversible reactions and dynamic equilibrium
Question
- A. The reaction will favor the endothermicdirection.
- B. The reaction will favor the exothermicdirection.
- C. The reaction will not be affected.
- D. The reaction will reach a new equilibrium immediately.
Answer
The reaction will favor the exothermicdirection.
Explanation
The correct answer is The reaction will favor the exothermicdirection.. This answer directly addresses the question: When the temperature of a system at equilibrium is decreased, which of the following statements is true regarding the reaction? It matches the approved Chemistry 8462 learning objective and the linked subtopic. The other options are incorrect because they either change the rate, catalyst, reversible reaction, equilibrium, or graph context, or they do not answer the exact point being tested.
Common mistake
Misunderstanding Temperature Effects
Students often think that decreasing temperature always increases the rate of reaction instead of favouring the exothermic direction of a reversible reaction.
Remember that decreasing temperature favours the exothermic direction, which can lead to increased product yield, but it does not necessarily mean the reaction rate will increase.
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