Chemical Kinetics - Order, Molecularity, Integrated Rate Equations

Grade 12 Chemistry — Chemical Kinetics - Order, Molecularity, Integrated Rate Equations: 25 practice questions with instant scoring and explanations.

1. For a first-order reaction, the integrated rate equation is:
2. For a zero-order reaction, the integrated rate equation is:
3. For a second-order reaction, the integrated rate equation is:
4. The half-life (t₁/₂) for a first-order reaction is:
5. The half-life for a zero-order reaction is:
6. The half-life for a second-order reaction is:
7. For a first-order reaction, half-life is:
8. A straight line plot of ln[A] vs t indicates:
9. A straight line plot of 1/[A] vs t indicates:
10. A straight line plot of [A] vs t indicates:
11. For first-order reaction, if [A]₀ = 0.1 M and k = 0.01 s⁻¹, after 69.3 s, [A] =:
12. For the reaction A → B + C, if initial [A] = 1 M and after 100 s, [A] = 0.25 M, the order if k = 0.00173 is:
13. The average rate of reaction is calculated as:
14. The instantaneous rate is obtained from:
15. For consecutive first-order reactions A → B → C, the maximum [B] occurs at:
16. The fractional order reaction occurs when:
17. For a reaction with rate law Rate = k[A]^1.5, the units of k are:
18. The integrated form helps in determining:
19. If a reaction is 50% complete in 20 minutes and 75% complete in 40 minutes, the order is:
20. For a first-order reaction, the time taken for [A] to become [A]₀/4 is:
21. The shelf life of a drug depends on:
22. For reaction aA → products, if [A] changes from 1 M to 0.75 M in 10 s, and from 0.75 M to 0.5625 M in next 10 s, order is:
23. The rate of reaction at any time can be found from:
24. For first and second order reactions, the order can be determined by:
25. A reaction that shows zero-order kinetics is: