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Question: Answered & Verified by Expert
The following data were obtained from the first order decomposition of 2 AgBg+C(S) at a constant volume and at a particular temperature
 
S No. Time Total pressure in Pascal
1 At the end of 10 min 300
2 After completion 200


The rate constant in min-1 is
ChemistryChemical KineticsNEET
Options:
  • A 0.0693
  • B 69.3
  • C 6.93
  • D 6.93×10-4
Solution:
1633 Upvotes Verified Answer
The correct answer is: 0.0693
2 A B + C t=0 2 P 0 - After 10 min 2 P - 2x x - After completion 0 P -

Given, P = 200 {after the completion}

2P-x=300 (at the end of 10 min)

=100

k=2.30310log200100=0.0693 min-1

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