Question

Which is not correct regarding the adsorption of a gas on surface of a solid?

• A. On increasing temp. adsorption increase continuously
• B. Enthalpy & entropy change is Ve
• C. Adsorption is more for some specific substance
• D. Reversible

Answer 1

The correct option is A On increasing temp. adsorption increase continuously

Adsorption of gas $\propto$ $\frac{1}{temperature}.$

Thus, as the temperature of the gas increases, the gas molecule gets energy and leave the surface. Thus, the rate of adsorption decreases with increase in temperature.