difference between order and molecularity of reaction?
|It is the sum of powers of the concentrations in the rate law expressions.||It is the number of moleculesr of the reactants taking part in an elementary reaction.|
|Order corresponds to the overall reaction.||Molecularity is for elementary reactions.|
|Order might involve one elementary reaction or it might involve a sequence of elementary reactions.||Molecularity is a part of the whole reaction.|
|It is an experimentally determined value.||It is a theoretical concept.|
|It can have fractional value.||It is always a whole number.|
|It can assume zero value.||It can not have zero value.|
|Order of a reaction can change with the conditions such as pressure, temperature, concentration etc.||Molecularity is invariant for a chemical equation.|