CHM 2045 Lecture Notes - Molecular Mass, Cubic Crystal System, Boiling-Point Elevation

• School: University of Florida
• Department: Chemistry
• Course: CHM 2045
• Professor: chu

Document Summary

Solids have a definite shape and a definite volume a. The molecules do not change positions, resulting in a fixed structure, whose molecules are in contact with neighboring molecules at all times. Liquids have a definite volume but no definite shape a. The molecules change position (translational motion) resulting in continuous random motion, and molecules that remain in contact with neighboring molecules at all times. The molecules of a solid are arranged in a fixed lattice structure, on the macroscopic level, they have repeating structure subunits called unit cells. Thus, the structure of a crystalline solid is defined by the size and shape of the unit cell and the locations of atoms within the unit cell. General chemistry page 1 ii. d. e. f. Alkaline metals often pack to form the simple cubic. Gold and silver pack to form a face-centered cubic. Properties of liquids a. b. c. d. e. f.