Same chapter3 marksDifficulty: Medium
State the Arrhenius equation and explain why the rate of a reaction rises steeply with temperature.
Chemical Kinetics
3 marksDifficulty: Medium
For a first-order reaction, 50% of the reactant is used up in 10 minutes. What fraction remains after 30 minutes?
Original Khojo Papers practice question — not from a past board paper.
Answer
One eighth
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Thirty minutes is three half-lives, so the fraction remaining is (1/2)3 = 1/8.
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Solutions