AP Chem Unit 5 Mac Flashcards
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Last updated 9:46 AM on 4/24/23
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15 Terms
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Units of K zero order
L-1, S-1, or Ms-1
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Units of K first order
S-1
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In order for a reaction to happen particles must…
1. collide w correct orientation
2. collide w enough energy
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ln\[A\] vs time
linear graph of 1st order
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(1/\[A\]) vs time
linear graph of 2nd order
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\[A\] vs time
linear graph of 0 order
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How do you identify rate determining step?
slowest step
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intermediates are identified by…
being a product then reactant
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catalysts are identified by…
being a reactant then a product
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define catalyst
speeds up reaction and does not get used
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five ways to speed up a reaction
1. catalyst
2. increase temperature
3. increase concentration
4. increase pressure (gases only)
5. increase surface area (solids only)
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Half life for first order
t(1/2)=0.693/K
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radioactivity decay is always…
first order
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On a PE diagram, a big “hill” means
high activation energy, slow reaction
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x+2y→xy2, rate=
rate=k\[x\]\[y\]2, no intermediates, reactants only
