Chapter 12, Problem 12.40SP

(a)

Interpretation Introduction

Interpretation:

The value of $\frac{\Delta \left[{\text{ClO}}_2{}^{-}\right]}{\Delta t}$ during the same interval if $\left(\frac{\Delta {\text{[Br}}_{\text{2}}\text{]}}{\Delta t}=\text{4}\text{.8}\times {\text{10}}^{\text{-6}}\text{ M/s}\right)$ has to be determined.

Concept Introduction:

Rate of reaction: The rate of a reaction is defined by the change in concentration of substrate (reactant) or target (product) with change in time.

$\text{Rate}\text{=}\frac{\text{Concentration}\text{change}\left(\text{in}\text{reactant}\text{or}\text{product}\right)}{\text{Time}\text{change}}$

For a reaction, $aA\underset{}{\to }bB$, Rate can be written as,

$Rate=\left(-\frac{1}{a}.\frac{\Delta \left[A\right]}{\Delta t}\right)=\left(\frac{1}{b}.\frac{\Delta \left[B\right]}{\Delta t}\right)$

(b)

Interpretation Introduction

Interpretation:

The average rate of consumption of $B{r}^{-}$ during the same interval has to be determined.

Concept Introduction:

Rate of reaction: The rate of a reaction is defined by the change in concentration of substrate (reactant) or target (product) with change in time.

$\text{Rate}\text{=}\frac{\text{Concentration}\text{change}\left(\text{in}\text{reactant}\text{or}\text{product}\right)}{\text{Time}\text{change}}$

For a reaction, $aA\underset{}{\to }bB$, Rate can be written as,

$Rate=\left(-\frac{1}{a}.\frac{\Delta \left[A\right]}{\Delta t}\right)=\left(\frac{1}{b}.\frac{\Delta \left[B\right]}{\Delta t}\right)$