Chemistry

Problem

Reaction

2A + B \xrightarrow{K} C + D

, shows first order with respect to

A

and second order with respect to

B

. The reaction was allowed with molarity

a_0 M

A

and

2a_0 M

B

t = 0

. If after time

t = 30

minute the molarity of

C

was

\frac{a_0}{4}

, the rate of reaction after 30 minutes can be written as : a.

r = \frac{7K a_0^3}{16}

r = \frac{27K a_0^3}{32}

r = \frac{247K a_0^3}{64}

r = \frac{49K a_0^3}{32}