Flashcards in Rates of Reaction Deck (9)
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1
How are rates of reaction measured?
By observing the changes in quantities of reactants or products over time
2
Rate =
change in concentration/ time
3
Concentration
-Measured in moldm-3
-units:moldm-3s-1
-[A] means concentration of A
4
Zero order
-When the concentration of a reactant has no effect on the rate.
-Any number raised to the power of zero is 1
5
First order
-A reaction is first order when the rate depends on the concentration raised to the power of one.
-Any change in concentration gives the same change in rate.
6
Second order
A r
7
Second order
-A reaction is second order when the rate depends on the concentration raised to the power of 2
-Any change in concentration changes the rate by the square of the change
8
Overall order
The overall order of reaction gives the overall effect of the concentrations of all reactants on the rate of reaction
9
