Chemical Kinetics Question 219

Question: The half-life of a first order reaction having rate constant K = 1.7 ´ 10-5 s-1 is [BHU 2005]

Options:

A) 12.1 h

B) 9.7 h

C) 11.3 h

D) 1.8 h

Show Answer

Answer:

Correct Answer: C

Solution:

$ K=1.7\times {10^{-5}}{s^{-1}} $

$ {t_{1/2}}=\frac{0.693}{K}=\frac{0.693}{1.7}\times 10^{5}=11.32h $



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