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Chemical Kinetics - Coggle Diagram
Chemical Kinetics
Integrated Rate laws
Zero order
[X] = -
k
t + [X]0
half-life = [X]0/2
k
:checkered_flag:
First order
ln[X] = -
k
t +ln[X]0
half-life = 0.693/
k
:checkered_flag:
Second order
1/[X] =
k
t + 1/[X]0
half-life = 1/
k
[X]0 :checkered_flag:
Graphical determination of reaction rates
Average rate
delta[X]/delta t between two points
Instantaneous rate
delta[X]/delta t between two points on either side
Relative rates of change
For the reaction xX -> yY
-(1/x)delta [X]/delta t = (1/y)delta[Y]/delta t
Activation energy
ln
k
= -Ea/R * (1/T) + ln A
k is rate constant
Ea is activation energy
R is gas constant 8.314 J/molK
T is temperature (Kelvin)
A is frequency factor
Arrhenius equation