Question detail

For Reversible reactions and dynamic equilibrium, which yield context statement most accurately matches this AQA Chemistry objective: Explain concentration effects using Le Chatelier's Principle.

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Reversible reactions and dynamic equilibrium

Question

A. Correct yield-context: Explain concentration effects using Le Chatelier's Principle. within The effect of changing concentration (HT only)
B. Distractor yield-context A: confuses this with a different Reversible reactions and dynamic equilibrium idea
C. Distractor yield-context B: uses the right words but gives the wrong cause or condition
D. Distractor yield-context C: answers a neighbouring objective instead of The effect of changing concentration (HT only)

Answer

The answer is Correct yield-context: Explain concentration effects using Le Chatelier's Principle. within The effect of changing concentration (HT only).

Explanation

The correct option is "Correct yield-context: Explain concentration effects using Le Chatelier's Principle. within The effect of changing concentration (HT only)" because it directly matches the learning objective in The effect of changing concentration (HT only). The other options are wrong because they either switch to a neighbouring Reversible reactions and dynamic equilibrium idea, reverse the chemistry relationship, or describe a condition that does not answer this objective.

Common mistake

Misunderstanding Le Chatelier's Principle

Students often think that changing the concentration of reactants or products will always shift the equilibrium towards the side with fewer molecules, without considering the specific reaction conditions.

To fix this, students should remember that Le Chatelier's Principle states that a system at equilibrium will shift to oppose the change. They should analyze the specific reaction and the number of moles on each side to predict the direction of the shift accurately.

Related flashcards

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If the concentration of reactants in a closed system is increased, what will happen to the position of equilibrium according to Le Chatelier's Principle?