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Which of the following is true about the adsorption of gases on solids? (2023)

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Question: Which of the following is true about the adsorption of gases on solids? (2023)

Options:

  1. It is always an exothermic process
  2. It is always an endothermic process
  3. It can be either exothermic or endothermic
  4. It does not involve energy changes

Correct Answer: It is always an exothermic process

Exam Year: 2023

Solution: 

The adsorption of gases on solids is typically an exothermic process, as energy is released when the gas molecules adhere to the surface.

Which of the following is true about the adsorption of gases on solids? (2023)

Practice Questions

Q1
Which of the following is true about the adsorption of gases on solids? (2023)
  1. It is always an exothermic process
  2. It is always an endothermic process
  3. It can be either exothermic or endothermic
  4. It does not involve energy changes

Questions & Step-by-Step Solutions

Which of the following is true about the adsorption of gases on solids? (2023)
  • Step 1: Understand what adsorption means. Adsorption is when gas molecules stick to the surface of a solid.
  • Step 2: Know that when gas molecules adhere to a solid, they release energy.
  • Step 3: Recognize that this release of energy is what makes the process exothermic.
  • Step 4: Conclude that the adsorption of gases on solids is typically an exothermic process.
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