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For the equilibrium 2A(g) ⇌ B(g) + C(g), if the concentration of B is increased,

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Question: For the equilibrium 2A(g) ⇌ B(g) + C(g), if the concentration of B is increased, what will happen to the concentration of A?

Options:

  1. Increase
  2. Decrease
  3. Remain the same
  4. Cannot be determined

Correct Answer: Decrease

Solution: 

According to Le Chatelier\'s principle, increasing the concentration of B will shift the equilibrium to the left, resulting in a decrease in the concentration of A.

For the equilibrium 2A(g) ⇌ B(g) + C(g), if the concentration of B is increased,

Practice Questions

Q1
For the equilibrium 2A(g) ⇌ B(g) + C(g), if the concentration of B is increased, what will happen to the concentration of A?
  1. Increase
  2. Decrease
  3. Remain the same
  4. Cannot be determined

Questions & Step-by-Step Solutions

For the equilibrium 2A(g) ⇌ B(g) + C(g), if the concentration of B is increased, what will happen to the concentration of A?
  • Step 1: Understand the equilibrium reaction: 2A(g) ⇌ B(g) + C(g). This means that A can turn into B and C, and B and C can turn back into A.
  • Step 2: Identify what happens when the concentration of B is increased. This means there is more B available in the reaction.
  • Step 3: Apply Le Chatelier's principle, which states that if a change is made to a system at equilibrium, the system will adjust to counteract that change.
  • Step 4: Since the concentration of B is increased, the system will try to reduce the amount of B by shifting the equilibrium to the left.
  • Step 5: Shifting the equilibrium to the left means that more B will turn back into A, which will decrease the concentration of A.
  • Le Chatelier's Principle – This principle states that if a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts to counteract the change.
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