CHEM 1061 Lecture 22: Chem 1081 Lecture 12-5

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Temperature dependence of k: g = -rt ln(k) = h - t s ln(k) = - (- h /rt) + ( s /r) = -( h /r)(1/t) + ( s /r) Irreversible reactions: universe is different after the process occurs: all real processes are irreversible, after a real process, the surroundings have less ability to do work and contain more thermal energy. Organic chemistry: organic chemistry: study of compounds containing carbon and their properties, c, h, n, o, p, s, halogens. Hydrocarbons: hydrocarbon: compound that only contains hydrogen and carbon, saturated hydrocarbon: carbon-carbon bonds are all single, each carbon is bonded to 4 atoms, called alkanes, unsaturated hydrocarbon: at least one carbon-carbon bond has multiple bonds. Alkanes: methane, sp3 hybrid orbital to bond to 4 hydrogen atoms, ethane, sp3 hybrid, each carbon has 4 bonded atoms, tetrahedral arrangement. Structural isomerism: structural isomer: occurs when 2 molecules have the same atoms but different bonding locations.