Question detail
In a reversible reaction, 50 kJ of energy is released when products form from reactants. Identify whether the forward or reverse reaction is exothermic.
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
In a reversible reaction, 50 kJ of energy is released when products form from reactants. Identify whether the forward or reverse reaction is exothermic.
Answer
The forward reaction is exothermic, and the reverse reaction is endothermic.
Explanation
This question assesses the ability to identify energy changes in reversible reactions. Since the forward reaction releases energy, it is exothermic, while the reverse reaction, which requires energy input, is endothermic. This answer is strongest when it stays anchored to Energy changes and reversible reactions and directly addresses identify whether the forward or reverse reaction is exothermicfrom given information.
Common mistake
Confusing Exothermic and Endothermic
Students often confuse which direction of a reversible reaction is exothermic and which is endothermic.
To fix this, carefully analyze the energy changes described in the reaction and remember that if one direction is exothermic, the opposite direction must be endothermic.
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