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Chemical Kinetics — quick quiz

5 real NSEC questions on Chemical Kinetics. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.

Question 1 of 4

HARD

For a first-order reaction, the rate constant at 300 K is 2.5 × 10⁻³ s⁻¹ and at 320 K is 8.0 × 10⁻³ s⁻¹. What is the activation energy (Ea) for this reaction? (Given: R = 8.314 J mol⁻¹ K⁻¹, ln 3.2 ≈ 1.16)