Today we looked at Dalton's Law of Partial Pressures and did a little bit of derivation and/or proof of where this Law comes from. {English note: ending a sentence with a preposition is not great, perhaps that should have been "proof of whence this Law came"} An ideal gas follows all gas laws exactly and does not violate Kinetic Molecular Theory of Gases; when real gases are studied, there are deviations, especially at high pressure and low temperature. Some of these deviations are phase changes. The behaviour of a sample as energy is added or removed can be visualized as a series of heat capacity and enthalpy events in a heating/cooling curve. If heating/cooling curves are observed at multiple pressures, a phase diagram can be constructed.
Don't forget to get signed up for OWL and look at the currently posted assignments. And as mentioned below, Chem 210L labs will not meet this week.
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