Question: For a reaction $3 \mathrm{~A} \rightarrow 2 \mathrm{~B}$
The average rate of appearance of $\mathrm{B}$ is given by $\frac{\Delta[B]}{\Delta t}$. The correct relation between the average rate of appearance of $\mathrm{B}$ with the average rate of disappearance of $\mathrm{A}$ is given in option :
A) $\frac{-\Delta[\mathrm{A}]}{\Delta \mathrm{t}}$
B) $\frac{-3 \Delta[\mathrm{A}]}{2 \Delta t}$
C) $\frac{-2 \Delta[\mathrm{A}]}{3 \Delta \mathrm{t}}$
D) $\frac{\Delta[\mathrm{A}]}{\Delta t}$
