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The amount of gas adsorbed on a solid surface
- a)Increases with increase in the temperature
- b)Increases with decrease in the temperature
- c)Independent on temperature
- d)Cannot say
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
The amount of gas adsorbed on a solid surface a)Increases with increas...
- Adsorption is defined as the deposition of molecular species onto the surface.
- The molecular species that gets adsorbed on the surface is known as adsorbate and the surface on which adsorption occurs is known as adsorbent.
- As adsorption is accompanied by release of heat energy, so in accordance with Le-Chatelier’s principle, the increase of temperature should decrease the extent of adsorption.
- Le-Chatelier’s principle: It states that if a constraint (such as a change in pressure, temperature, or concentration of a reactant) is applied to a system in equilibrium, the equilibrium will shift so as to tend to counteract the effect of the constraint.
- Adsorption is exothermic, so heat can be assumed as product. Now if product (heat or temperature) is increased, equilibrium will shift towards left side (reverse adsorption). Hence, increase in temperature decreases the amount of gas adsorbed.
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The amount of gas adsorbed on a solid surface a)Increases with increas...
Effect of Temperature on Gas Adsorption:
Factors affecting gas adsorption on a solid surface include temperature. Let's discuss how temperature influences the amount of gas adsorbed.
Effect of Temperature on Gas Adsorption:
- Increases with decrease in the temperature:
When the temperature decreases, the kinetic energy of gas molecules decreases, leading to a greater tendency for them to be adsorbed on the solid surface. This is due to the fact that at lower temperatures, the gas molecules have less energy to overcome the attractive forces of the solid surface, resulting in more adsorption.
- Decreases with increase in the temperature:
Conversely, when the temperature increases, the kinetic energy of gas molecules increases. This causes the gas molecules to have more energy to escape the attractive forces of the solid surface, leading to a decrease in the amount of gas adsorbed.
Therefore, the correct answer to the question is that the amount of gas adsorbed on a solid surface increases with a decrease in temperature.
Factors affecting gas adsorption on a solid surface include temperature. Let's discuss how temperature influences the amount of gas adsorbed.
Effect of Temperature on Gas Adsorption:
- Increases with decrease in the temperature:
When the temperature decreases, the kinetic energy of gas molecules decreases, leading to a greater tendency for them to be adsorbed on the solid surface. This is due to the fact that at lower temperatures, the gas molecules have less energy to overcome the attractive forces of the solid surface, resulting in more adsorption.
- Decreases with increase in the temperature:
Conversely, when the temperature increases, the kinetic energy of gas molecules increases. This causes the gas molecules to have more energy to escape the attractive forces of the solid surface, leading to a decrease in the amount of gas adsorbed.
Therefore, the correct answer to the question is that the amount of gas adsorbed on a solid surface increases with a decrease in temperature.
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The amount of gas adsorbed on a solid surface a)Increases with increase in the temperatureb)Increases with decrease in the temperaturec)Independent on temperatured)Cannot sayCorrect answer is option 'B'. Can you explain this answer?
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