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Karnataka Board PUCPUC Science 2nd PUC Class 12

A reaction is first order in A and second order in B. How is the rate affected when the concentrations of both A and B are doubled?

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A reaction is first order in A and second order in B. How is the rate affected when the concentrations of both A and B are doubled?

A reaction is of first order with respect to reactant [A] and second order with regard to reactant [B]. What is the effect on rate of reaction when concentrations of both [A] and [B] are doubled?

Numerical
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Solution

When the concentrations of both A and B are doubled,

Rate = k(2a) (2b)2

= k(2a) (4b2)

= 8 kab2

∴ The reaction rate will increase by a factor of 8.

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