Q.

In the reaction 2N2O54NO2+O2, initial pressure is 500 atm and rate constant K is 3.38×105sec1. After 10 minutes the final pressure of N2O5 is

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a

490 atm 

b

480 atm

c

420 atm

d

250 atm 

answer is A.

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Detailed Solution

p0=500 atmK=2.303tlogp0pt3.38×105=2.30310×60log500pt

 0.00880=log500pt pt= 5001.02=490atm

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