What triggers a chemical reaction? - Kareem Jarrah
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Date: 2020-08-22
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Comments and reviews: 6
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Entropy/enthalpy/energy are merely elegant mathematical concepts which the universe does not know of. The reason two massive objects attract each other is not that the universe wants to lower the potential energy of the system, rather, the mathematical concept of energy was defined so as to match observations such as gravitational attraction. You can predict the outcomes of complex chemical reactions using the linearity of those mathematical quantities with respect to the elementary building blocks of the system. But the behaviour of each elementary building block must not be explained using these concepts. Otherwise you could explain absolutely everything using the argument that after all, if it happened, it must have increased the entropy of the universe.
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Entropy/enthalpy/energy are merely elegant mathematical concepts which the universe does not know of. The reason two massive objects attract each other is not that the universe wants to lower the potential energy of the system, rather, the mathematical concept of energy was defined so as to match observations such as gravitational attraction. You can predict the outcomes of complex chemical reactions using the linearity of those mathematical quantities with respect to the elementary building blocks of the system. But the behaviour of each elementary building block must not be explained using these concepts. Otherwise you could explain absolutely everything using the argument that after all, if it happened, it must have increased the entropy of the universe.
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Alexandru
This is literally wrong, reaction entropy has NOTHING to do with activation energy, you're conflating thermodynamics with kinetics.
Diamond spontaneously transforms into graphite, the reaction is exothermic AND entropically favorable, so the free energy surely will decrease, why doesn't it happen before our eyes at any measurable rate each time we simply observe a diamond?
Because it's kinetically limited by a huge activation energy, which has NOTHING to do with the entropy of reaction or the enthalpy of reaction.
I repeat, getting over the hill does NOT depend on enthalpy or entropy of reaction, it depends on the activation barrier, this is kinetics NOT thermodynamics.
Why does TED promote wrong information?
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This is literally wrong, reaction entropy has NOTHING to do with activation energy, you're conflating thermodynamics with kinetics.
Diamond spontaneously transforms into graphite, the reaction is exothermic AND entropically favorable, so the free energy surely will decrease, why doesn't it happen before our eyes at any measurable rate each time we simply observe a diamond?
Because it's kinetically limited by a huge activation energy, which has NOTHING to do with the entropy of reaction or the enthalpy of reaction.
I repeat, getting over the hill does NOT depend on enthalpy or entropy of reaction, it depends on the activation barrier, this is kinetics NOT thermodynamics.
Why does TED promote wrong information?
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Threelly
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Thales
Jokes
1: I was going to make a jump but they all of them argon
2. I was going to make a joke about sodium but Na
3. I was going to make a joke about chemistry but I didnt think there would be a reaction
Pls like so everyone can see I want enough likes so that someone sees it who lives by me and tells it to me
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Jokes
1: I was going to make a jump but they all of them argon
2. I was going to make a joke about sodium but Na
3. I was going to make a joke about chemistry but I didnt think there would be a reaction
Pls like so everyone can see I want enough likes so that someone sees it who lives by me and tells it to me
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Moffat
entropy? disorder? lmao what say you have a bunch of silicone atoms, and they bond to each other to form their crystalline lattice? isnt it order from disorder and still entropy? wouldnt it have been better if you said entropy is a measure of the number of different ways a state can occur?
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entropy? disorder? lmao what say you have a bunch of silicone atoms, and they bond to each other to form their crystalline lattice? isnt it order from disorder and still entropy? wouldnt it have been better if you said entropy is a measure of the number of different ways a state can occur?
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anibassb
I love the voice of this guy, I could listen to him talking about anything anytime. all the time. I wonder what he looks like. :)
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I love the voice of this guy, I could listen to him talking about anything anytime. all the time. I wonder what he looks like. :)
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