Chapter DY, Problem 5PQ

Interpretation Introduction

Interpretation:

The rate law for the reaction ${\text{H}}_{\text{2}}{\text{O}}_{\text{2}}{\text{+2H}}^{\text{+}}{\text{+2I}}^{\text{-}}\stackrel{}{\to }{\text{I}}_{\text{2}}{\text{+2H}}_{\text{2}}\text{O}$ is ${\text{rate=k[H}}_{\text{2}}{\text{O}}_{\text{2}}{\text{][I}}^{\text{-}}\text{]}$.  The overall order of the reaction has to be calculated.

Concept Introduction:

Rate of a reaction:

Speed at which the chemical reaction happens is known as rate of a reaction.  Slower the speed of the reaction, lower will be the rate.  Concentration, temperature, pressure, catalyst are the factors affecting rate of a reaction.

Rate law – it is a relationship between reaction rates and reactant concentrations

Order of a reaction:

Order of a reaction is the power of the rate on the concentration of each reactant.  Order of a reaction is an experimentally determined one.