For a first order reaction in gaseous phase, A → B + C + D, starting with initial pressure 400 mm. If the total pressure after 2 hours is 800 mm, the value of rate constant is:

Question

Prashant Kotian · Accepted Answer

Correct answer: B.      A B C D At t 0 400mm After 2 hrs 400 x x x x As per question 400 – x + x + x + x = 800  x = 200  o A A P

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