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Consider the following reaction, 2A +...

Consider the following reaction,
`2A + B + C rarr` Products
How will the rate of reaction changes when the concentration of A is doubled and that of B is triplet while C is taken in excess ?

A

The rate reduces 8 times of its original value

B

The rate reduces 12 times of its original value

C

The rate increases 8 times of its original value

D

The rate increases 12 times of its original value

Text Solution

Verified by Experts

The correct Answer is:
D
`2A+B+Crarr` Products
`r_(1)=k[A]^(2)[B]`
[`because` C is taken in excess, rate does not depend on C]
`r_(2)=k[2A]^(2)[3B]`
`(r_(2))/(r_(1))=(12k[A]^(2)[B])/(k[ A]^(2)[B])implies r_(2)=12r_(1)`
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