Chem 113- Unit 1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| four controllable factors for reaction rate | concentration, physical state, temperature, catalyst
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| initial rate | rate (t=0) = Δ[A]/Δt
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| zero order | rate=k
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| first order | rate=k[A]
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| second order | rate=[A]^2
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| overall reaction order | the sum of all reaction orders
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| first order integrated rate law | ln[A]t=-kt+ln[A]0
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| second order integrated rate law | 1/[A]t=kt+1/[A]0
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| zero order integrated rate law | [A]t= -kt +[A]0
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| Arrhenius equation | K=Ae^(-Ea/RT)
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| Arrhenius equation (for T1/T2) | ln (k2/k1)= (-Ea/R)(1/T2-1/T1)
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| ΔH (rxn)= | Ea(fwd)-Ea(rev)
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| if temp is held constant... | higher Ea= lower f
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| if Ea is held constant... | higher temp= higher f
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| transition state | symbolized by the activation state-> could go back to reactants or to products
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| reaction intermediates | created and used up in elementary steps
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| unimolecular (elementary step) | first order, rate=k[A]
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| bimolecular (elementary step) | 2nd order, rake=k[A]^2
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| termolecular (elementary step) | ***not likely to occur
3rd order, rate=k[A]^3
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| rate determining step | (RDS) highest energy step; slowest step
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Created by:
melaniebeale
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