Which of the following statements is $NOT$ correct regarding the adsorption of a gas on a solid surface?

  • A
    Adsorption is always exothermic.
  • B
    Physisorption can transform into chemisorption at high temperatures.
  • C
    Physisorption increases with an increase in temperature,whereas chemisorption decreases with an increase in temperature.
  • D
    Chemisorption is more exothermic than physisorption,yet it is very slow due to high activation energy.

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