K=0.03 s−1 (First order reaction) A0=7.2 mol L−1 At=0.9 mol L−17.2t1/23.6t1/21.8t1/20.9t=3t1/2=0.033×0.693=69.3 s
If the rate constant of a reaction is 0.03 s−1, how much time does it take for 7.2 mol L−1 concentration of the reactant to get reduced to 0.9 mol L−1 ? (Given :log2=0.301 )
Held on 30 Apr 2025 · Verified 9 Jul 2026.
69.3 s
23.1 s
210 s
21.0 s
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