00:02
So we have a multiple choice question here.
00:04
We want to pick the reaction or process that indicates an increase in entropy.
00:09
So that means that we have an increase in randomness or disorder in our system.
00:14
All right, so if we have dry ice, which starts as solid carbon dioxide, sublimates, meaning it transitions directly into the gas, and we have co2 vapor.
00:26
Generally when you go from solid to gas you go from particles that have a regular crystalline structure to particles that move randomly and chaotically so yeah that represents an increase in entropy let's rule out the other options because presuming there's only one right answer okay water freezes into ice so that's the opposite process that's it of something that is a so be a a solid.
00:52
If you have a liquid, right, you have intermediate order between a solid and a gas.
00:59
So we'd have entropy increasing going from solid to liquid, and we'd have entropy decreasing going the other way as you become more ordered as you freeze.
01:10
So that's not right...