Reaction , shows first order with respect to and second order with respect to . The…

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

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 : (1)

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

(2)

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

(3)

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

(4)

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