Chemical Kinetics Question 342

Question: The rate constant for a first order reaction whose half life is 480 sec, is:

Options:

A) $ 1.44\times {10^{-3}}se{c^{-1}} $

B) $ 1.44\times se{c^{-1}} $

C) $ 0.72\times {10^{-3}}se{c^{-1}} $

D) $ 2.88\times {10^{-3}}se{c^{-1}} $

Show Answer

Answer:

Correct Answer: A

Solution:

[a] $ k=\frac{0.693}{{t_{1/2}}}=\frac{0.693}{480}=1.44\times {10^{-3}}{s^{-1}} $



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