CHEM 1007 Lecture Notes - Lecture 1: Propene, Electronegativity, Bromine
Document Summary
The physical and chemical properties of an organic compound depend on the number and arrangement of carbon atoms with the molecule, and the functional group. The larger the number of carbon atoms, larger molecule, larger van der waal"s forces so higher melting & boiling points and viscosity. Molecules with no branching have a higher surface area so larger van der waals. A functional group is a specific atom or group of atoms that confer certain physical and chemical properties onto the molecule. Organic compounds with the same functional group but different number of carbon atoms belong to the same homologous series. Isomers are molecules with the same molecular formula but different structural formulas. Alkanes can form chloroalkanes from free radical substitution: ch4 +cl2 -> ch3cl + hcl. A substitution reaction is where an atom or group of atoms on the organic molecule is directly replaced by another.