Question

i) The reaction A+B → product is first order in each of the reactions. How does the rate Change if concentration of B decreased by factor 3.​

Answer 1

Answer:

Since, the reaction is first order in each reactant, the rate law expression is rate =k[A][B].( 1)

The concentration of  A is increased by a factor of 3.

[A]  

′

=3[A].( 2)

rate' =k[A]  

′

[B].( 3)

Substitute equation (2) in equation (3)

rate' =k(3[A])[B]..( 4)

Divide equation (4) with equation (1)

rate

rate  

′

 

​

=  

k[A][B]

k(3[A])[B]

​

=3

Hence, the rate will increase by a factor of 3.

Explanation:

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