Adsorption Theory of Heterogeneous Catalysis

\[\ce{H2}\] gas is adsorbed on activated charcoal to a very little extent in comparison to easily liquefiable gases due to:

(i) very strong van der Waal’s interaction.

(ii) very weak van der Waals forces.

(iii) very low critical temperature.

(iv) very high critical temperature.

Identify the enzyme 'X' in the following reaction.

\[\ce{H2O2_{(aq)} ->[X] H2O2_{(l)} + 1/2O2_{(g)}}\]

Why is desorption important for a substance to act as good catalyst?

Finely divided catalyst has greater surface area and has greater catalytic activity than a compact solid. If a total surface area of 6291456 cm² is required for adsorption of gaseous reaction in a catalysed reaction, then the number of splits should be made of a cube exactly 1 cm in length is ______.
[Given : After each split new cubes of equal dimensions are formed.]

Gaseous CO and gaseous H₂ react with each other in presence of catalyst 'X' to form methane and water. 'X' is ____________.

Substance that enhances the activity of a catalyst is known as ____________.

Do the vital functions of the body such as digestion get affected during fever? Explain your answer.

Which of the following statements are correct about solid catalyst?

(i) Same reactants may give different product by using different catalysts.

(ii) Catalyst does not change ∆H of reaction.

(iii) Catalyst is required in large quantities to catalyse reactions.

(iv) Catalytic activity of a solid catalyst does not depend upon the strength of chemisorption.