The rate law for a reaction between substances and is given by

CHEMISTRY · Single correct · A Level · Chemistry · Rate equations · Rate equations

Problem

The rate law for a reaction between substances

A

and

B

is given by

\text{rate}=k[A]^n[B]^m

. On doubling the concentration of

A

and halving the concentration of

B

, the ratio of the new rate to the earlier rate of the reaction will be (1)

m+n

(2)

n-m

(3)

2^{n-m}

(4)

\frac{1}{2^{m+n}}