M Mar 28
Today in Chem 104:
- Lecture: EntropyA thermodynamic state function, symbol S, that equals the reversible heat energy transfer divided by temperature; higher entropy corresponds to greater dispersal of energy on the molecular scale. See also standard entropy.
- Reading:
Kotz: Ch. 19, Sec. 1-4
Moore: Ch. 18, Sec. 1-4 - Homework #8 due by 11:55 PM F Apr 1
- Quiz in second discussion section this week
♦ Additional ungraded questions for this reading can be found in the ChemPaths: Extra Problems Thermodynamics: Atoms, Molecules and Energy.
Today's reading on ChemPaths contains the following sections:
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Add to Diigo!Term of the Day
The spontaneousCapable of proceeding without an outside source of energy; refers to a reaction in which the products are thermodynamically favored (product-favored reaction). movement of a liquidA state of matter in which the atomic-scale particles remain close together but are able to change their positions so that the matter takes the shape of its container into thin tubes (capillary tubes); the extent of capillary actionThe spontaneous movement of a liquid into thin tubes (capillary tubes); the extent of capillary action is determined by adhesive forces, cohesive forces, and surface tension. is determined by adhesive forces, cohesive forces, and surface tensionThe resistance to an increase in the area of a surface; due to the combined effect of adhesive and cohesive forces at the surface of a liquid. Defined as the energy required to increase the surface area of the liquid isothermally by one square meter..
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