Distinguish between order and molecularity of a reaction.

Open in App

Solution

Molecularity Order
$(1)$ It is the number of reaction species undergoing simultaneous collision. $(1)$ It is the sum of powers of the concentration terms in the rate law expression.
$(2)$ It is a theoretical concept. $(2)$ It is experimentally determined.
$(3)$ It has integral values only. $(3)$ It can have fractional values also.
$(4)$ It cannot be zero.
$(4)$ It can be zero.
$(5)$ It provides no information on the reaction mechanism. $(5)$ The slowest step in the reaction can be judged by the order of the reaction & this gives further information about the mechanism.

Suggest Corrections

Similar questions

In any unimolecular reaction ......... .
(a) only one reacting species is involved in the rate determining step
(b) the order and the molecularity of slowest step are equalto one
(c) the molecularity of the reaction is one and order is zero
(d) both molecularity and order of the reaction are one

Q. Write the difference between order and molecularity of a reaction.

Q. What is the difference between the order and molecularity of a reaction? Explain.

Q. Write four differences between molecularity and order of reaction.

Q. What is difference between molecularity and order of reaction?

Join BYJU'S Learning Program

Molecularity	Order
$(1)$ It is the number of reaction species undergoing simultaneous collision.	$(1)$ It is the sum of powers of the concentration terms in the rate law expression.
$(2)$ It is a theoretical concept.	$(2)$ It is experimentally determined.
$(3)$ It has integral values only.	$(3)$ It can have fractional values also.
$(4)$ It cannot be zero.	$(4)$ It can be zero.
$(5)$ It provides no information on the reaction mechanism.	$(5)$ The slowest step in the reaction can be judged by the order of the reaction & this gives further information about the mechanism.