MediumNEET TEST
+4 / -1
If rate constant for a reaction is 10⁻³ sec⁻¹. Then time for the completion of 75% reaction is:
A
693 sec
B
1386 sec
C
6930 sec
D
2029 sec
Explanation
For first order reaction, t = 2.303/k log(1/(1−0.75)) = 2.303/(10⁻³) log(4) ≈ 1386 sec.
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