reaction rate law formulas

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Chemistry

Kinetics

AP Chemistry

Unit 5: Kinetics

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12 Terms

1
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Zero Order Rate Law

Rate = k[A]o = k

2
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Zero Order Integrated Rate Law

[A] = -kt + [A]o

3
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Zero Order Half Life

t½ = [A]o / 2k

4
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First Order Rate Law

Rate = k[A]

5
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First Order Integrated Rate Law

ln[A] = -kt + ln[A]o

6
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First Order Half Life

t½ = ln2 / k  =  0.693 / k

7
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Second Order Rate Law

Rate = k[A]2

8
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Second Order Integrated Rate Law

  1     = kt +     1

  [A]               [A]o

9
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Second Order Half Life

t½ = 1 / k[A]o

10
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Zero Order Graph

A(t) x t and slope = -k

11
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First Order Graph

ln(A) x t and slope = -k

12
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Second Order Graph

1/[A] x t and slope = k