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In a reaction where heat is absorbed (endothermic), what happens when the temper

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Question: In a reaction where heat is absorbed (endothermic), what happens when the temperature is decreased?

Options:

  1. Shifts to the right
  2. Shifts to the left
  3. No effect
  4. Increases the reaction rate

Correct Answer: Shifts to the left

Solution: 

Decreasing the temperature in an endothermic reaction shifts the equilibrium to the left, favoring the formation of reactants as the system seeks to release heat.

In a reaction where heat is absorbed (endothermic), what happens when the temper

Practice Questions

Q1
In a reaction where heat is absorbed (endothermic), what happens when the temperature is decreased?
  1. Shifts to the right
  2. Shifts to the left
  3. No effect
  4. Increases the reaction rate

Questions & Step-by-Step Solutions

In a reaction where heat is absorbed (endothermic), what happens when the temperature is decreased?
  • Step 1: Understand that an endothermic reaction absorbs heat from its surroundings.
  • Step 2: Recognize that when the temperature decreases, the system feels like it has lost heat.
  • Step 3: Realize that to counteract this loss of heat, the reaction will shift to produce more heat.
  • Step 4: Since the reaction absorbs heat, producing more reactants will release heat.
  • Step 5: Therefore, the equilibrium shifts to the left, favoring the formation of reactants.
  • 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.
  • Endothermic Reactions – In endothermic reactions, heat is absorbed from the surroundings, and a decrease in temperature can shift the equilibrium towards the reactants.
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