Chapter 14.3, Problem 1PE

Interpretation Introduction

Interpretation:

The time (in seconds) taken for the reactant A to decrease from $0.88M$ to $0.14M$ has to be given.

Concept introduction:

Rate law: It is an equation that related to the rate of reaction to the concentrations or pressures of substrates (reactants).  It is also said to be as rate equation.

• Depends on order of the chemical reaction, the rate law or rate equation also varies.

Order of a reaction:  The sum of exponents of the concentrations in the rate law for the reaction is said to be order of a reaction.

For first order reaction $-kt=\ln \left(\frac{\left[A\right]}{\left[A_0\right]}\right)$

$\left[A\right]$ is the concentration of reactant A at time t ${\left[A\right]}_0$ is the initial concentration of reactant, k is the rate constant.