Question detail
What effect does increasing the concentration of reactants have on equilibrium?
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. It shifts equilibrium towards the products
- B. It shifts equilibrium towards the reactants
- C. It has no effect on equilibrium
- D. It increases the rate of the reverse reaction
Answer
It shifts equilibrium towards the products
Explanation
The correct answer is It shifts equilibrium towards the products. This answer directly addresses the question: What effect does increasing the concentration of reactants have on equilibrium? 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
Understanding Closed Systems
Students often forget that a closed system prevents the escape of reactants or products, which is essential for maintaining equilibrium.
Emphasize that a closed system allows for accurate predictions of equilibrium shifts because it keeps the concentrations of reactants and products constant.
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