How Reactions Happen: Steps, Collisions, & Energy - AP Chem Unit 5, Topics 4, 5, and 6

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In this video, Mr. Krug discusses the intricacies of HOW chemical reactions take place. He starts out with the concept of elementary steps and multi-step processes, then he continues with the collision model of how reactions take place. Then the video concludes with how energy changes over the course of a reaction, highlighting the difference between exothermic and endothermic processes.
00:00 - Topic 5.4 Elementary Reactions
04:55 - Topic 5.5 Collision Model
10:51 - Topic 5.6 Reaction Energy Profile
  1. Jeremy Krug (krugslist)
  2. ap chemistry unit 5
  3. ap chem unit 5 review
  4. ap chem chemical kinetics
  5. ap chem reaction rates
  6. ap chemistry unit 5 practice problems
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I love your videos so much, I currently don't have a teach for AP Chem, she had to go on a maternity leave and you'vr been helping me so much. I've recommended your videos to all my classmates.

sumuuu
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Your videos are super helpul, Mr. Krug!

emmanuellaeledu
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If catalyzed pathways lower the activation energy, does that result in a lower/higher change in enthalpy as well depending on whether its endo/exothermic?

bonelessburst
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at 1:13 how do you know what the rate is if you do not know the order?

NatashaFernando-unuw
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does the energy profile tell us anything about the rate of reaction? For example if we have a exergonic energy profile. And lets say we have a curve with a high Ea, and a curve with a low Ea, does it tell us anything about the rate of reaction?

corbinbiology