99 Percentile Qs Bank for JEE MainChemistryChemical Kinetics
Which one of the following statements is correct?
Options
- AIn collision theory, (e^ -E_ n / R T ) corresponds to the fraction of molecules that have energy equal or grea
- BThe number of collisions of reacting molecules per second per unit volume of the reaction mixture is activated
- CMolecularity is the number of molecules involved in a complex reaction
- DA catalyst catalyses the non-spontaneous reaction
Correct answer
A. In collision theory, (e^ -E_ n / R T ) corresponds to the fraction of molecules that have energy equal or grea
Step-by-step solution
(a) In collision theory, (e^ -E_a / R T ) corresponds to the fraction of molecules that have energy equal to or greater than (E_a ) (activation - energy) is the correct statement because it is in accordance with Arrhenius theory. (b) The number of collision of the reacting molecules per second per unit volume of the reaction mixture is activated complex is not a correct statement as activated complexes are formed during the reaction, which finally gives the product. (c) Molecularity is the number of molecules invol