Question

“Nuclear reactions are first order reactions.”

1. Do you agree?

2. What do you mean by order of a reaction?

3. Write two differences between order and molecularity.

Answer 1

1. Yes.

2. Order of a chemical reaction is the sum of the powers of the concentration terms which occur in the rate expression.

3. Two differences between order and molecularity:

• Order : Experimental, can be zero. 
• Molecularity : Theoretical, cannot be zero.