CHEM 001B Lecture Notes - Lecture 11: Amorphous Solid, Crystal, Paper Towel
Document Summary
Practice : phase diagrams from -100 to 200 at a pressure of 25 atm. Describe the phase changes that occur when the temperature of co 2 is increased. At the initial conditions (-100 , 25 atm) co 2 is a solid. As temperature is increased, we pass through the melting line ( solid liquid ) at a temperature of approximately -56 . Continuing horizontally at constant pressure, we pass through the liquefaction point ( liquid gas ) at a temperature near 0. 0 . At the final temperature (200 ), co 2 is a gas. Energy needed to separate the molecules at the surface of a liquid. As attractive forces increase, surface tension increases. Measure of resistance to flow of a liquid. As interactive forces increase, surface tension and viscosity also increase. Ability of a liquid to spontaneously flow against gravity and rise up a tube or structure. Involves adhesive forces with the tube and cohesive forces within the liquid.
