Which of the following can result in a transition from physisorption to chemisorption?(a) Decrease in temperature(b) Increase in temperature(c) Decrease in pressure(d) Increase in surface areaThe question was asked by my college director while I was bunking the class.Question is from Surface Chemistry in division Surface Chemistry of Chemistry – Class 12

Which of the following can result in a transition from physisorption t

1.	Which of the following can result in a transition from physisorption to chemisorption?(a) Decrease in temperature(b) Increase in temperature(c) Decrease in pressure(d) Increase in surface areaThe question was asked by my college director while I was bunking the class.Question is from Surface Chemistry in division Surface Chemistry of Chemistry – Class 12
Answer» Right answer is (b) Increase in temperature The explanation: PHYSISORPTION occurs due to Van der Waals forces. On increasing the temperature, the adsorbate can split into ATOMS and form chemical bonds with the adsorbent and HENCE, cause CHEMISORPTION.

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