Chapter 11, Problem 11.10DQ

Interpretation Introduction

Interpretation:

The main features, including advantages and disadvantages of the given experimental methodes for determining the rate law of a reaction has to be described.

Concept Introduction:

Rate of the reaction is the change in the concentration of reactant or a product with time. It can be varied in accordance with temperature, pressure, concentration, presence of catalyst, surface area…

Rate equation for the general reaction $\text{A+B}\to \text{Product}$ is,

$Rate=\underset{\begin{array}{l}rate\\ constat\end{array}}{k}\left[A\right]\left[B\right]$

Integrated rate law for a first order reaction is,

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

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

Rate constants are independent of concentration but depend on other factors, most notably temperature.

The reaction with the faster rate will have the larger rate constant.

Rate of reaction depends on time, temperature, pressure, concentration, and $\text{pH}$ of the reaction.