Question

4.
The rate constant of reaction is 3 x 10- atm-
sec"The order of reaction is.
(a) 1
(b) 2
(c) 3
(d) o​

Answer 1

identify order by using unit in such questuon

you konw genral formula for unit of rate constant

Answer 2

The order of the reaction with rate constant having units of atm/sec is equal to zero.

• The order of the reaction can be identified by looking at the units of the the rate constant of the reaction.
• In the rate law, if the order of the reaction is n, the the units of the rate constant of the reaction will be (conc.)¹⁻ⁿ/sec.
• Here, concentration is measured in terms of pressure so the units of concentration is atm.
• Hence, we can clearly see that the order of the reaction is zero.