Q57.For a first order reaction, the ratio of the time for 75% completion of a reaction to the time for 50% completion is ___________ . (Integer answer)
What This Question Tests
This question tests the understanding of the integrated rate law for a first-order reaction and the ability to calculate time for different percentages of completion.
Concepts Tested
Formulas Used
t = (2.303/k) log(R₀/R)
📚 NCERT Sections This Tests
3.18 — For A First Order Reaction, Show That Time Required For 99% Completion
Chemistry Class 11 · Chapter 3
3.18 For a first order reaction, show that time required for 99% completion is twice the time required for the completion of 90% of reaction.
3.16 — The Rate Constant For A First Order Reaction Is 60 S–1. How Much Time Will
Chemistry Class 11 · Chapter 3
3.16 The rate constant for a first order reaction is 60 s–1. How much time will it take to reduce the initial concentration of the reactant to its 1/16th value?
3.25 — Sucrose Decomposes In Acid Solution Into Glucose And Fructose According
Chemistry Class 11 · Chapter 3
3.25 Sucrose decomposes in acid solution into glucose and fructose according to the first order rate law, with t1/2 = 3.00 hours. What fraction of sample of sucrose remains after 8 hours ?
📋 Question Details
- Chapter
- Chemical Kinetics
- Topic
- First-order reaction kinetics
- Year
- 2021
- Shift
- 31 Aug Shift 1
- Q Number
- Q57
- Type
- Numerical
- NCERT Ref
- Class 12 Chemistry Ch 4: Chemical Kinetics
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