01:160:161 Chapter Notes - Chapter 12: Molar Mass, Cella, Lattice Energy
Document Summary
Chapter 12: intermolecular forces: liquids, solids, and phase changes. 12. 1 an overview of physical states and phase changes. 1 atm and the temperature of the change: h fus < h vap: less e required to overcome forces holding molecules in fixed positions than to separate them completely from each other sublimation-solid gas. Deposition-gas solid heat of sublimation: solid liquid h fus, liquid gas h vap, solid gas h subl = h fus + h vap. 12. 2 quantitative aspects of phase changes apply kinetic-molecular theory quantitatively to phase changes: heating/cooling curve cooling curve (total heat released = sum of heat released at each stage: stage 1: gaseous water cools. C: molar heat capacity of gaseous water q = n x cwater(g) x t n: # of moles of water: stage 2: gaseous water condenses. H2o(g) [100 c] h2o(l) [100 c] q = n(- h vap: stage 3: liquid water cools.
