Question

Which of the following statements is not correct for chemisorption and physisorption?

• A. Physical adsorption occurs at a low temperature and chemisorption occurs at all temperatures.
• B. Magnitude of chemisorption decreases with rise in temperature while physisorption increases with rise in temperature.
• C. Chemisorption is irreversible and physisorption is reversible.
• D. In physisorption activation energy is low while in chemisorption it is high.

Answer 1

Answer: (B)

Chemisorption increases and physisorption decreases with rise in temperature.