Reaction Order Review

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6 Terms

1
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Zero Order
Rate \= K

Units of K: M/s

Rate is independent of all concentrations
2
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First Order
Rate \= k[A]
Rate \= k[B]

Units of K: 1/s or s^-1

Rate is directly proportional to one of the reactants independent of all other
3
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Second Order
Rate \= k[A]^2
Rate \= k[B]^2
Rate \= k[A][B]

Units of K: 1/Ms

Complex
4
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Zero Order
Zero Order
Rate \= K

\[A]t \= -Kt + [A]0

\[A]t vs. t

Half-Life: [A]0/2k
5
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First Order
First Order
Rate \= k[A]

In[A] \= -kt + In[A]0

In[A]t vs. t

Half-Life: 0.693/k
6
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Second Order
Second Order
Rate \= k[A]^2

1/[A] \= kt + 1/[A]0

1/[A]t vs. t

Half-Life: 1/k[A}0