Which one of the following characteristi...

Which one of the following characteristics is not correct for physical adsorption?

A

Adsorption on solids is reversible

B

Adsorption increases with increase in temperature

C

Adsorption is spontaneous

D

Both enthalpy and entropy of adsorption are negative.

Text Solution

Verified by Experts

The correct Answer is:

B

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Adsorption is the tendency of accumulation of molecular species at the surface of solid or liquid. Depending upon the nature of bonds or forces of attraction between adsorbate and adsorbent. It is classofied between physisorption and chemisorption. Which of the following characteristics is not correct for physical adsorption?

Knowledge Check

Physical adsorption is:

A

irreversible

B

highly specific

C

not very specific

D

unpredictable

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