CHEM 399 Lecture Notes - Hydrogen Bond
Document Summary
Discussion questions page 5-19: given the information in the table on the right, explain the trending the melting points of the halogens. As we go down the group of halogens, the london (dispersion) forces increase because the size of the molecules and therefore polarizability increases. Explain how this is a result of hydrogen bonding in solid water. When ice freezes, the hydrogen bonds between each water molecule will expand/space out and solidify with the water molecules. This allows for more space between the water molecules, i. e. water expands when it is frozen. Therefore, more space what corresponding water will allow it to be less dense, which will allow it to float on water.
