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