INTRODUCTION - Chapter 4 Chemical Kinetics Intext Solutions class 12 ncert solutions Chemistry - SaraNextGen [2024-2025]

Updated On August 15, 2024

By SaraNextGen

Question 4.1:

For the reaction R → P, the concentration of a reactant changes from 0.03 M to 0.02 M in 25 minutes. Calculate the average rate of reaction using units of time both in minutes and seconds.

Answer:

Average rate of reaction 

= 6.67 × 10⁻⁶ M s⁻¹

Question 4.2:

In a reaction, 2A → Products, the concentration of A decreases from 0.5 mol L⁻¹ to 0.4 mol L⁻¹ in 10 minutes. Calculate the rate during this interval?

Answer:

Average rate 

= 0.005 mol L⁻¹ min⁻¹

= 5 × 10⁻³ M min⁻¹