Chemical Kinetics - Rate of Reaction, Rate Law

Grade 12 Chemistry — Chemical Kinetics - Rate of Reaction, Rate Law: 25 practice questions with instant scoring and explanations.

1. Rate of reaction is defined as change in:
2. The rate of reaction is expressed as:
3. The rate law expression for a reaction aA + bB → products is:
4. The rate constant (k) has units that depend on:
5. For a zero-order reaction, the units of k are:
6. For a first-order reaction, the units of k are:
7. For a second-order reaction, the units of k are:
8. The reaction order is determined by:
9. Molecularity of a reaction is:
10. Molecularity can be:
11. The relationship between order and molecularity is:
12. A unimolecular reaction has molecularity =:
13. A bimolecular reaction has molecularity =:
14. For an elementary reaction, order = molecularity. This is:
15. The rate-determining step is:
16. The overall order of a multi-step reaction is determined by:
17. For the reaction 2NO + O₂ → 2NO₂, if Rate = k[NO]²[O₂], the overall order is:
18. The rate constant increases with:
19. The rate constant is independent of:
20. A catalyst increases the rate of reaction by:
21. A catalyst is:
22. The relationship between rate (v) and rate constant (k) is:
23. The initial rate method is used to determine:
24. If doubling [A] increases rate by 4 times, the order with respect to A is:
25. The rate of reaction depends on: