Decay Flashcards

1
Q

Decay equation

A

R(t) = R(0)e^-it

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2
Q

Rate constant

A

Functional rate of change in the level

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3
Q

Time constant

A

Inverse of rate constant
Represented by Tj

Tj = 1/k 
K = 1/ Tj 
  • has time units to match those of associated rate constant
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4
Q

Half line

A

Time taken for the level to reach half its initial value
(t1/2 denotation)
Units: Time

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5
Q

Half line equation

A
t1/2 = ln2/k  OR 
k = ln2/ t1/2
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6
Q

The half life is related to the time constant

A
t1/2 = Tj ln2   OR 
Tj = t1/2 / en2
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7
Q

Recovery

A

R(t) = R(♾)(1-e^-kt)

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