In a reaction at equilibrium, if the concentration of a reactant is decreased, w

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Question: In a reaction at equilibrium, if the concentration of a reactant is decreased, what will happen?

Options:

Correct Answer: Shift to the left

Solution:

According to Le Chatelier\'s principle, decreasing the concentration of a reactant will shift the equilibrium to the left to produce more reactants.

In a reaction at equilibrium, if the concentration of a reactant is decreased, what will happen?

In a reaction at equilibrium, if the concentration of a reactant is decreased, what will happen?

Step 1: Understand that a reaction at equilibrium means the forward and reverse reactions are happening at the same rate.
Step 2: Recognize that reactants are the starting materials in a chemical reaction.
Step 3: Know that Le Chatelier's principle states that if a change is made to a system at equilibrium, the system will adjust to counteract that change.
Step 4: When the concentration of a reactant is decreased, the system will try to increase it back to restore equilibrium.
Step 5: To increase the concentration of the reactant, the equilibrium will shift to the left, favoring the formation of more reactants from the products.

Le Chatelier's Principle – This principle states that if a system at equilibrium is subjected to a change in concentration, temperature, or pressure, the system will adjust to counteract that change and restore a new equilibrium.