CH0002  Lecture 4
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What is the half life of a reaction?
The amount of time it takes for a quantity to fall to half its value as measured at the beginning of the time period
For a second order reaction, how does the half life behave?
It doubles every time
What is the differential form of the first order rate equation?
d
[A]/
dt
=
k
[A]
What is the integrated form of the first order rate equation?
[A] = [A]
_{0}
exp(
kt
)
Or, eqivalently
ln[A] = ln[A]
_{0}

kt
What is the formula for the half life of a first order reaction?
t
_{1/2}
= ln(2)/
k
What is the effect of temperature on the rate constant?
Rate will increase with temperature because...
1. Molecules will be traveling at greater speeds.
2. More molecules have enough energy to react.
Card Set Information
Author:
james14hunter
ID:
261189
Filename:
CH0002  Lecture 4
Updated:
20140210 13:21:15
Tags:
CH0002 Lecture
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CH0002  Lecture 4
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CH0002  Lecture 4
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