Chemistry

Difference between Molecularity and order of Reaction

The Major difference between molecularity and order of a reaction is that Molecularity is the number of atoms, ions, or molecules that must collide with one another simultaneously and result in a chemical reaction while the order of a reaction is the sum of the concentrations on which the rate of reaction actually depends.

difference between molecularity and order of a reaction

What is the Order of Reaction?

The Order of Reaction is a concept in Chemistry that helps to determine the rate of a chemical reaction. It is the number of molecules of a reactant that must collide in order to produce a reaction.

The order of reaction can be determined by experimentally measuring the rate of reaction and then comparing the results to the rates of other reactions. it is important because it can help to predict the rate of a reaction under different conditions.

  1. It is the sum of all the exponents of the concentration of reactants involved in the rate equation.
  2. Its value can be in whole numbers or fractions.
  3. Its value can never be more than three.
  4. It can be zero.

What is the Molecularity of a Reaction?

Molecularity is a term used to describe the number of molecules that are involved in a chemical reaction. In general, reactions with a higher molecularity are more complex and take longer to occur than reactions with a lower molecularity.

For example, a reaction between two molecules (A + B) would have a molecularity of 2, while a reaction between three molecules (A + B + C) would have a molecularity of 3. Molecularity can be used to predict the rate of a reaction, as well as the products of the reaction.

  1. It is the total number of atoms, molecules, or ions present in a single step.
  2. Its value is always in the whole number.
  3. Its value can be more than three.
  4. It can never be zero.

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