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Question: For the first order decomposition of N<sub>2</sub>O<sub>5</sub> , it is found that 2 N<sub>2</sub>O...

For the first order decomposition of N2O5 , it is found that

2 N2O5 (g) ¾® 4 NO2 (g) + O2 (g) d[N2O5]dt\frac{- d\lbrack N_{2}O_{5}\rbrack}{dt}= K [N2O5]

N2O5 (g) ¾® 2 NO2 (g) + 12\frac{1}{2}O2 (g)d[N2O5]dt\frac{- d\lbrack N_{2}O_{5}\rbrack}{dt}= K¢[N2O5]

Therefore which of the following is true?

A

K = K¢

B

K > 2K¢

C

K > K¢

D

2K = K¢

Answer

K = K¢

Explanation

Solution

Rate of disappearance of N2O5­ does not depend upon the way a chemical reaction is formulated. Therefore , K = K¢