JEE · NEET Previous Year Question

Rate of physical adsorption increases with

Topic: JEE PYQ

Answer: A. Full step-by-step solution below.

  1. Adecrease in temperature
  2. Bdecrease in pressure
  3. Cincrease in temperature
  4. Ddecrease in surface area.

Correct answer: A

Solution

(a) : Low temperature favours physical adsorption, it decreases with increase of temperature and vice-versa. Decrease of pressure causes desorption. Physical adsorption varies directly with surface area, i.e., higher the surface area, more will be the adsorption.

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