Question detail

In a closed system at equilibrium, the concentration of reactant A 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

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Style

Topic

Reversible reactions and dynamic equilibrium

Question

In a closed system at equilibrium, the concentration of reactant A is increased. Predict the effect on the position of equilibrium and explain your reasoning using Le Chatelier's Principle.

Answer

The position of equilibrium will shift towards the products. Accordingto Le chatelier's Principle, the system will respond to oppose the change by consumingthe added reactant A to form more products.

Explanation

This answer demonstrates understandingof Le chatelier's Principle and its application to changes in concentration, testingthe student's ability to predict equilibrium shifts. This answer is strongest when it stays anchored to The effect of changingconcentration (HT only) and directly addresses (HT only) Predict that increasingreactant concentration shifts equilibrium towards products.

Common mistake

Misunderstanding Equilibrium Shifts

Students often think that increasing reactant concentration will shift the equilibrium towards reactants instead of products.

Remember that according to Le Chatelier's Principle, increasing the concentration of reactants will shift the equilibrium position towards the products to counteract the change.

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