NEET Chemistry Chemical Kinetics Questions Solved

BOARD

(a) For a reaction A+B P, the rate law is given by, r = k[A]12B2.

     What is the order of this reaction?

(b) A first order reaction is found to have a rate constant k = 5.5×10-14 s-1. Find the half life of the reaction.

(a) According to the formula  r = k[A]12B2

  Order w.r.t. A =12+21=52

(b) For first order reaction, t12 =0.693k

 Given: k = 5.5×10-14 s-1

 Thus, t12 =0.6935.5×10-14s-1

 Hence t12 = 1.26 ×1013 s 

Difficulty Level:

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