Question

According to the adsorption theory of catalysis, the speed of the reaction increases because

• A. adsorption produces heat which increases the speed of the reaction
• B. adsorption lowers the activation energy of the reaction
• C. the concentration of reactant molecules at the active centres of the catalyst becomes high due to adsorption
• D. in the process of adsorption, the activation energy of the molecules becomes large 12

Answer 1

Answer: (B)

adsorption lowers the activation energy of the reaction

Answer 2

According to adsorption theory of catalysis, the speed (rate) of the reaction increases because adsorption lowers the activation energy of the
reaction. $\bigg( \therefore Rate \, of \, reaction \propto \frac{1}{ activatoon \, \, energy } \bigg)$