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What is the effect of temperature on physisorption?

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Question: What is the effect of temperature on physisorption?

Options:

  1. Increases with temperature
  2. Decreases with temperature
  3. No effect
  4. Depends on the adsorbate

Correct Answer: Decreases with temperature

Solution: 

Physisorption typically decreases with increasing temperature because the kinetic energy of the molecules increases, overcoming the weak van der Waals forces.

What is the effect of temperature on physisorption?

Practice Questions

Q1
What is the effect of temperature on physisorption?
  1. Increases with temperature
  2. Decreases with temperature
  3. No effect
  4. Depends on the adsorbate

Questions & Step-by-Step Solutions

What is the effect of temperature on physisorption?
  • Step 1: Understand what physisorption is. It is a type of adsorption where molecules stick to a surface through weak forces called van der Waals forces.
  • Step 2: Know that temperature affects the energy of molecules. As temperature increases, the kinetic energy of the molecules also increases.
  • Step 3: Realize that with higher kinetic energy, molecules move faster and can overcome the weak forces holding them to the surface.
  • Step 4: Conclude that as temperature increases, physisorption decreases because the molecules are more likely to detach from the surface.
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