Lowering the activation energy of a reaction makes the rate:
AIncrease
BDecrease
CStay same
DFall to zero
Answer & Solution
Correct answer: A. Increase
1. A lower barrier is easier for molecules to cross.
2. More of them then have enough energy.
3. So the rate increases.
_Source: syllabus Chemistry Part I, Chapter 4, Chemical Kinetics._
Keep practising Chemical Kinetics
Browse all Chemical Kinetics questions for CBSE Class 12 (Science), or explore more Chemistry topics.
Related questions
Chemical equilibrium is reached whenWhich technique studies fast reactions by a sudden temperature or pressure change?The study of reactions initiated by light is calledCrushing a solid reactant speeds a reaction because itIn 1864 Waage and Guldberg published which law?Who received the first Nobel Prize in Chemistry in 1901 for laws of chemical dynamics?Who studied the inversion of sucrose in 1850, pioneering chemical kinetics?The number of collisions per second per unit volume of a reaction mixture is called