Which of the following statements is not correct?

  • A
    Both physical and chemical adsorptions are exothermic
  • B
    Physical adsorption takes place with decrease of free energy whereas chemical adsorption occurs with increase of free energy
  • C
    Physical adsorption requires low activation energy but chemical adsorption requires high activation energy
  • D
    The magnitude of chemical adsorption increases and that of physical adsorption decreases with rise in temperature

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Similar Questions

Which of the following gases will be adsorbed to a greater extent on the surface of charcoal?

Which one of the following is correct for the adsorption of a gas at a given temperature on a solid surface?

The correct order of adsorption of the following gases on the surface of charcoal is: $H_2$ $(I)$,$CH_4$ $(II)$,$SO_2$ $(III)$.

Select the correct statement.

According to the Langmuir adsorption isotherm,which of the following plots is a straight line?

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