And those molecules are going to be in way more configurations Just larger, it's going to have more molecules in it. And if we're talkingĪbout the molecular level if this room was warmĪnd this room were cold, and actually if this room is Larger, this room actually could have more configurations. The number of configurations that a room could actually have. Messy is a particular state,Ĭlean is a particular state. In this example with the rooms, we're just talkingĪbout particular states. We're not talking about any one of the particular states, any one of the particular configurations, we're talking about the system as a whole without really knowing exactly This thing you could imagine there's a lot more stuff moving around and a lot more differentĭirections and they have a lot more space to move around. We're really talking about the number of states something could have. Here has more possible states, more configurations, it would take more to tell you exactly where everything is. Time, we would say that there's more possible states relative to this one, this So the system without even knowing what the actual molecules are doing at that given moment in Many, many different states that it could take on.
Molecules all bouncing around in different ways there's Larger, there's more places for the molecules toīe and there's actually more molecules in it. Two yellow molecules, let's say that is has a blue molecule, let's say that it has a green molecule, let's say that it has a
Where I have this box with the four molecules in it, and let's compare it to another system where I have a larger box. And so a system can take onĪ bunch of different states. Molecule to get over here, maybe the pink molecule is now over here, and the green molecule is now over here. Or maybe the yellow molecule is over here, they bounce around enoughįor the yellow molecule to get there, the blue Molecules are bouncing around could take on other configurations. Well this would be a particular state, a particular configuration.
Molecule right over here, and then I have a green molecule. I have this blue molecule, I have this yellow What do I mean by states of a system? Well if I have a container like this, and if I have four molecules that are bouncing around. Entropy, this kind of aĭisorder is more of the number of states that a system can take on. Means in the entropy sense we're going to have toįlex our visualization of muscles a little bit more, but hopefully it'll all sink in. So something being messy, does not equal entropy. Is not the same thing as this form of disorder. Somehow being indicative of having more entropy. Of textbooks they'll use this analogy of a clean And you wouldn't beĪlone in thinking that. So if all you had is thisĭefinition, you'd say okay maybe this one is more disordered, maybe this one has more entropy. And this over here looksĭisordered, it's a messy room.
Here, this looks ordered, It's a clean room. These rooms you might say okay this room over Systems has more entropy? Alright, so I'm assuming The moon here to the sun, and these clearly aren'tĪt scale, the sun would be way more massive or way larger if I was drawing it to scale. This room to this room, and ask yourself, which Now with just thatĭefinition in your head, I want you to pause this videoĪnd I want you to compare this system to this system. You'll see of entropy, they'll involve the word disorder. So one of the more typical definitions, or a lot of the definitions Hopefully build a very strong intuition of what it is. To the idea entropy it seems a little bit mysterious.
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