PHYS 2B Chapter Notes - Chapter 18: Ideal Gas Law, Ideal Gas, Carbon-12
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State variables: these variables describe the state of the material. Equation of state: the relationship among variables. 18. 2 molecular properties of matter (cid:894)van de(cid:396) waal"s e(cid:395)uation(cid:895) One mole is the amount of substance that contains as many elementary entities as there are atoms in 0. 012 kilogram of carbon-12. A container with volume v contains a very large number n of identical molecules, each with mass m. The molecules behave as point particles that are small compared to the size of the container and to the average distance between molecules. Each molecule collides occasionally with a wall of the container. The container walls are rigid and infinitely massive and do not move. Rule of dulong and petit: elemental solids all have molar heat capacities of about 25 j/mol k. Phase equilibrium: a transition from one phase to another requires this between two phases. Phase diagram: a graph that represents these conditions.
