CHEM-C 243 Lecture Notes - Lecture 5: London Dispersion Force, International System Of Units, Sulfur
Document Summary
Based in kinetic theory of matter- all matter moves. Gases at room temperature: hydrogen, oxygen, nitrogen, fluorine, chlorine, noble gases, bromine can be- near triple point, not exclusively gas. Section 1- pressure: gases exert pressure on surroundings, other states do not (liquids do very little, fill any container uniformly, mixes completely with any other gas, pressure (pa) = 1 unit of standard atmospheric pressure = 1 atm = 101,325 pa = 101. 325 kpa = 29. 92 in hg = 760 mm hg = 760 torr = 14. 7 psi (lbs/in2: barometer- device used to measure atmospheric pressure. Assumes constant temperature and number of molecules ( is constant for a given sample of air at a specific temperature) When pumping up a tire, number of molecules is increasing, which makes up for the fact that boyle"s law works against you (volume decreases: charles"s law- volume () and temperature () are directly related.
