Chemical Kinetics Question 190

Question: For a first order reaction velocity constant, K=103s1 . Two third life for it would be [MP PET 2001; UPSEAT 2003]

Options:

A) 1100 s

B) 2200 s

C) 3300 s

D) 4400 s

Show Answer

Answer:

Correct Answer: C

Solution:

We know that k=2.303tlogaax

103=2.303tloga(a2a3),103=2.303tlog,3

103=2.303t×0.4771,t=2.303×0.4771103

=3300sec



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