NEET Chemistry Chemical Kinetics Questions Solved


A hypothetical reaction, A2 +B2  2AB mechanism as given below;

A2 A+ A          ............(Fast)

A+B2 → AB + B   ............(Slow)

A+ → AB         ............(Fast)

The order of the overall reaction is:

(a) 2

(b) 1

(c) 1.5

(d) zero

 

(c) r = k[A][B2]

     and Kc = [A][A]/[A2] or [A] = k1/2c [A2]1/2

     Thus, r = k .  k1/2c [A2]1/2[B2] = k'[A2]1/2[B2]

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