L41 BIOL 181 Lecture 7: A&P- Enzymes
13 Nov 2017
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Buffalo chip and bottle have same amount of energy (chemical potential energy roughly same, atoms essentially same, but if light match to each difference is one is stable and other is incredibly unstable) Early colonists burned buffalo chips for fuel. If burn ethanol look at how many degrees water temp increased = how many kcals. Activation energy: energy you have to add to system in order to get reactants to point where they will react and release chemical potential energy. Top of mountain to bottom is chemical potential energy. Energy needed to put over edge is activation energy. Chemical potential energy is bond energy -- already in it. Activation is energy needed for energy -- energy needed to break bonds. Something that"s more stable will require a higher activation energy vs something that"s unstable will require lower activation energy. *explain difference between chemical potential energy and activation energy (and each term)
