For the reaction

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

Problem

For the reaction

\text{H}_2(\text{g})+\text{Br}_2(\text{g})\rightarrow2\text{HBr}(\text{g})

, the experimental data suggest

\text{rate}=k[\text{H}_2][\text{Br}_2]^{1/2}.

The molecularity and order of reaction are, respectively, (1)

2

and

2

(2)

2

and

\frac{3}{2}

(3)

\frac{3}{2}

and

2

(4) Not defined and

\frac{3}{2}