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15 Cards in this Set
- Front
- Back
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Rate law, general equation...
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Rate = k([A]^x)([B]^y)([C]^z)
A,B, and C are REACTANTS |
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Reaction rate .....with increasing concentration of reactants because....
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Increases
if there are more reactant molecules moving around in a given volume, then more collisions will occur |
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Reaction rate...... with increasing temperature because...
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Increases
increase in temp means molecules move faster and greater avg kinetic energy. |
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Intermediates
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appear in mechanism but cancels out of the balanced equation
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Rate determining step is...
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the slowest step
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K(eq) =?
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K(f)/K(r)
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first order:
x axis... y axis... slope... |
x axis...time
y axis...ln[A] slope...-k |
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zero order half life?
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= [A]0/2k
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zero order:
x axis... y axis... slope... |
x axis...time
y axis...[A]t slope...-k |
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first order half life?
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= .693/k
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Second order:
x axis... y axis... slope... |
x axis...time
y axis...1/[A]o slope...k |
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half life of second order?
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= 1/(k[A]o)
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Arrhenius Equation
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k = Ae^(-Ea/RT)
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from the arrhenius equation, or from the graph
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lnk = (-Ea/R)(1/T) + lnA
where, on the graph, it is lnk versus 1/T (x-axis) with a slope of -Ea/R |
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Collision Theory
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Sufficient kenetic/activation energy
and...proper orientation |
