Question

Differences between Rate of a reaction and Rate constant.

Answer 1

Rate of reaction	Rate constant
Change in molar concentration of reactant/product per unit time is called rate of reaction rate	Rate constant is equal to the rate of a reaction when conc. of reactant is taken unity.
It varies for same reaction and depend on conc. of reactant.	conc. of reactant It is constant for a reaction at a temperature. It is independent of conc. of reactant.
Its unit is always mol L-1 sce-1	For different order reaction its unit vary.