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Physical adsorption of a gaseous species...

Physical adsorption of a gaseous species may change to chemical adsorption with

A

decrease in temperature

B

increase in temperature

C

increase in surface area of adsorbent

D

decrease in surface area of adsorbent .

Text Solution

Verified by Experts

The correct Answer is:
B
At high temperature, gaseous species may dissociate into atoms which are chemisorbed, e.g., `N_(2)` on iron surface at `ge 773K.`
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