Question

define rate of a reaction and mention it's units​

Answer 1

Answer:

here is your answer from Google and its correct!!

Answer 2

Explanation:

The rate of reaction can be defined as the change in the concentration of any one of the reactants or products per unit time. ... This is expressed either in terms of decrease in the concentration of a reactant per unit time or increase in the concentration of a product per unit time. The rate of reaction varies with time.

For the purposes of rate equations and orders of reaction, the rate of a reaction is measured in terms of how fast the concentration of one of the reactants is falling. Its units are mol dm-3 s-1.