According to Le Chatelier principle, adding more reactant to an equilibrium system will:

A Shift equilibrium toward products

B Shift equilibrium toward reactants

C Have no effect

D Decrease the equilibrium constant

✓ Correct Answer: Option A

Adding reactant increases reactant concentration; the system shifts toward products to partially restore equilibrium. Keq remains unchanged.

💡 Why is A) the correct answer?

The correct answer to the question "According to Le Chatelier principle, adding more reactant to an equilibrium system will:" is Option A: Shift equilibrium toward products.

The other options — B) Shift equilibrium toward reactants, C) Have no effect, D) Decrease the equilibrium constant — are incorrect for this MCAT Exam Prep question. As explained above: Adding reactant increases reactant concentration; the system shifts toward products to partially restore equilibrium. Keq remains unchanged.

📚 About This MCAT Exam Prep Practice Question

This 2-level MCAT Exam Prep question from the Chemical & Physical Foundations topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free MCAT Exam Prep practice test or use flashcards for spaced repetition review.

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According to Le Chatelier principle, adding more reactant to an equilibrium system will:

✓ Correct Answer: Option A

📚 About This MCAT Exam Prep Practice Question

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