Which of the following can result in a transition from physisorption to chemisorption?a.Increase in surface areab.Increase in temperaturec.Decrease in pressured.Decrease in temperature
Question
Which of the following can result in a transition from physisorption to chemisorption?a.Increase in surface areab.Increase in temperaturec.Decrease in pressured.Decrease in temperature
Solution
The transition from physisorption to chemisorption can be caused by an increase in temperature.
Here's a step-by-step explanation:
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Physisorption is a type of adsorption where the forces involved are van der Waals forces, which are relatively weak and hence, can be easily overcome by increasing the temperature.
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As the temperature increases, the kinetic energy of the adsorbate molecules also increases. This allows them to overcome the weak van der Waals forces involved in physisorption.
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With sufficient energy, the adsorbate molecules can now interact with the adsorbent surface more strongly, leading to the formation of chemical bonds. This process is known as chemisorption.
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Therefore, an increase in temperature can result in a transition from physisorption to chemisorption.
The other options (increase in surface area, decrease in pressure, decrease in temperature) are not typically associated with a transition from physisorption to chemisorption.
Similar Questions
Which of the following statements is true with respect to the extent of physisorption?a.Increases with increase in temperatureb.Decreases with increase in temperaturec.Decreases with increase in surface aread.Decreases with increase in the strength of Van der Waals forces
Which of the following statement describes chemisorption?
physisorption
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When the temperature is lowered and pressure is raised, the adsorption of a gas on a solida.Increasesb.Remains unaffectedc.Decreasesd.Decreases first then increases
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