CHEM 4501 Study Guide - Midterm Guide: Molecular Mass, Sulfur Trioxide, Total Pressure
Document Summary
Solid liquid coexistence line (very steep, almost vertical) T k: at any point in the diagram, specifies given pressure and temperature, diagram is important to understanding material, each line or curve represents pressure and temperature where 2 phases coexist at. Example: equilibrium: point where 3 curves meet triple point, gibbs phase rule: = 3 . Negative slope for water (also sb and bi) Water phase diagram: curve ln() =4110 + 18. 33 273 < < 300, curve ln () =5319 + 22. 67 250 < < 280. 3: at critical point, the difference between liquid and gas(vapor) vanishes. = amount of liquid lost is the same as substance gained in vapor phase. 2 = (,) (,) : at equilibrium, constant and = 0, = 0. Since 0: not i equilibrium spontaneous change. If there is transfer of matter from ( > 0), chemical potential of is greater than . is a molar quantity, intensive of gibbs energy. (,) = g(t, p)
