For a reaction 3 ~A arrow 2 ~B The average rate of appearance of B is given by (Δ[B])/(Δ t) . The correct relation between the average rate of appearance of B with the average rate of disappearance of A is given in

Correct answer: A. -2 Δ[A] 3 Δ t For reaction, 3 ~A 2 ~B Average rate of reaction =-(1)/(3) Δ[A] Δ t =(1)/(2) Δ[B] Δ t So Δ[B] Δ t =-(2)/(3) Δ[A] Δ t

NEET 2023

NEET 2023 · Chemistry · Chemical Kinetics

For a reaction 3 ~A arrow 2 ~B The average rate of appearance of B...

For a reaction

3 \mathrm{~A} \rightarrow 2 \mathrm{~B}

The average rate of appearance of

B

is given by

\frac{\Delta[B]}{\Delta t}

. The correct relation between the average rate of appearance of

B

with the average rate of disappearance of

A

is given in option

A. $\frac{-2 \Delta[\mathrm{A}]}{3 \Delta \mathrm{t}}$

For reaction,

3 \mathrm{~A} \longrightarrow 2 \mathrm{~B}

Average rate of reaction

=-\frac{1}{3} \frac{\Delta[\mathrm{A}]}{\Delta \mathrm{t}}=\frac{1}{2} \frac{\Delta[\mathrm{B}]}{\Delta \mathrm{t}}

\frac{\Delta[\mathrm{B}]}{\Delta \mathrm{t}}=-\frac{2}{3} \frac{\Delta[\mathrm{A}]}{\Delta \mathrm{t}}