NEET Chemistry Surface Chemistry Questions Solved


Assertion : Physical and chemical adsoptions respond differently to a rise in temperature.

Reason : Chemical adsorption requires some activation energy.

Show Options

(A). Physical and chemical adsoptions respond differently to a rise in temperature because

       chemical adsorption requires some activation energy. So, at low temperatures, it is very small

       but increases with a rise in temperature. At higher temperatures, it starts decreasing because

       the adsorbate molecules gain more kinetic energy and are able to leave the surface of the

       adsorbent. While in physical adsorption decreases with a rise in temperature.

Difficulty Level:

  • 40%
  • 50%
  • 9%
  • 3%