Chemical Kinetics Question 113

Question: The decomposition of $ N_2O_5 $ is a first order reaction represented by $ N_2O_5\to N_2O_4+\frac{1}{2}O_2 $ . After 15 minutes the volume of $ O_2 $ produced is $ 9,ml $ and at the end of the reaction $ 35,ml $ . The rate constant is equal to [MP PET 1995]

Options:

A) $ \frac{1}{15},\ln ,\frac{35}{44} $

B) $ \frac{1}{15},\ln ,\frac{44}{26} $

C) $ \frac{1}{15},\ln ,\frac{44}{35} $

D) $ \frac{1}{15},\ln ,\frac{35}{26} $

Show Answer

Answer:

Correct Answer: D

Solution:

$ K=\frac{1}{t}\log e( \frac{a}{a-x} )=\frac{1}{15}\log e( \frac{35}{35-9} ) $

$ =\frac{1}{15}\log e( \frac{35}{26} ) $



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