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Kinetics ­ Answers
1. The rate of a chemical reaction is the change in concentration of a reactant or product with time. Its units are mol
dm-3 s-1. The average rate of reaction is defined as rate = concentration
2. The rate equation is an equation that links the…

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[A] [B] Rate
1 0.25 0.25 4
2 0.25 0.50 8
3 0.5 0.25 8
1) Consider experiments 1 and 3
[B] = no change
[A] = x2
R= x2
Therefore the reaction is first order with respect to [A]
2) Consider experiments 1 and 2
[A] = no…

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Zero Order: Horizontal line
First Order: Straight line sloping upwards
Second Order: Curved line sloping upwards against [ ] or straight line sloping upwards against [ ]2
20. The value of the rate constant depends on:
The orientation factor of the molecules
The activation energy for the reaction
The temperature…


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