Question

the concentration of reaction decreases from 0.2M to 0.05M in 5minutes.The rate of reaction in mol. lit-1sec-1
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Answer 1

Explanation:

5 minutes = 5x60 seconds = 300 seconds.

Diffference in concentration = [0.05 - 0.2] = 0.15

Rate of reaction = -0.15/300

= 0.0005 mol.lit-1.sec-1

However, I am not sure about the method.