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JEE Main201910 Apr 2019Morning ShiftChemistrySurface ChemistryActual

A gas undergoes physical adsorption on a surface and follows the given Freundlich adsorption isotherm equation x m = k p 0.5 Adsorption of the gas increases with:

Options

  1. ADecrease in p and increase in T
  2. BIncrease in p and decrease in T
  3. CIncrease in p and increase in T
  4. DDecrease in p and decrease in T

Correct answer

B. Increase in p and decrease in T

Step-by-step solution

x m = k p   0.5 Physical adsorption increases with decrease in Temperature. According to relation x m ↑ on P ↑ So adsorption increases on increasing pressure.

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