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4. Chemical Kinetics
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Q3 of 39 Page 103

For a reaction, A + B → Product; the rate law is given by, r = k [ A]1/2 [B]2. What is the order of the reaction?

The order of the reaction is sum of the powers of concentration of reactants in the rate law. According to this,


The order of the reaction = 1/2 + 2


=


The order of the reaction is 2.5


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1

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

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?

4

The conversion of molecules X to Y follows second order kinetics. If concentration of X is increased to three times how will it affect the rate of formation of Y ?

5

A first order reaction has a rate constant 1.15 × 10-3 s-1. How long will 5 g of this reactant take to reduce to 3 g?

Questions · 39
4. Chemical Kinetics
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