CHEM 1953 Lecture Notes - Lecture 3: Auguste Bravais, Antibonding Molecular Orbital, Sodium Chloride
10 Mar 2016
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Liquids fills shape of container, not very compressible. Important but also relatively easy to explain behavior. Widely spaced molecules in constant random motion. Si unit = pascal = pa = 1kg/ms^2. Normal atmosphere pressure = 100,000 pa = 1atm = 760 mmhg sea level 15 degrees celsius. 1 bar equals 10^5 pa, 1 atm = 760 torr, 101. 325kpa. Gas laws: volume vs. pressure boyle"s law (robert boyle, 1662, volume, pressure, density vs. temp - charles law (charles + guy-lussac, 1787, volume vs. number of molecules. Molar volume = 22. 4 l/mol at 0 degrees celsius and 1 atm (stp) (avragado 1811) Satp standard ambient temperature and pressure, 25 degrees celsius, 1 barr (100 kpa) Ether = 3. 03 g/l air = 1. 6 g/l at satp ether is heavier than air, explodes. Total pressure = p + p + p. Mole fraction = moles of a / total moles. Average kinetic energy only thing that affects it is temperature.
