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In a reaction where heat is absorbed (endothermic), what happens if the temperat

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

Options:

  1. Shifts to the right
  2. Shifts to the left
  3. No effect
  4. Reaction rate decreases

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 if the temperat

Practice Questions

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

Questions & Step-by-Step Solutions

In a reaction where heat is absorbed (endothermic), what happens if the temperature is decreased?
  • Step 1: Understand that an endothermic reaction absorbs heat from its surroundings.
  • Step 2: Recognize that the reaction has two parts: reactants and products.
  • Step 3: Know that when the temperature decreases, the system feels like it is losing heat.
  • Step 4: To counteract the loss of heat, the system shifts the reaction to produce more heat.
  • Step 5: This shift means the reaction will favor the reactants, moving the equilibrium to the left.
  • Le Chatelier's Principle – This principle states that if a system at equilibrium is subjected to a change in temperature, pressure, or concentration, the system will adjust to counteract that change.
  • Endothermic Reactions – Reactions that absorb heat from the surroundings, resulting in a decrease in temperature of the surroundings.
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