PPT-Phase Diagrams Phase diagram: plot of pressure vs. Temperature summarizing all equilibria

Given a temperature and pressure phase diagrams tell us which phase will exist Features of a phase diagram Triple point temperature and pressure at which all three phases are in equilibrium Vaporpressure curve generally as pressure increases temperature increases. (TKK-2246). 14/15 Semester 2. Instructor: Rama . Oktavian. Email: rama.oktavian86@gmail.com. Office Hr.: . M – F.13-15. Outlines. . 1. . Review. . 2. . Liquid-liquid . equilibria. (2-components). Phase diagram: plot of pressure vs. Temperature summarizing all equilibria between phases.. Given a temperature and pressure, phase diagrams tell us which phase will exist.. Features of a phase diagram:. INTRODUCTION. At sea level. At top of a mountain. Water boils at 100. C. Water boils at < 100. C. b.P. = f(P). P = 1.0133 bar. bp. = 100. C. P = 0.26 bar. bp. = 69. C. elevation = 8848 m. Courtesy www.lab-initio.com. CA Standards. Students know . energy is released when a material condenses or freezes and is absorbed when a material evaporates or melts.. Water phase changes. Temperature remains __________. GLY 4200 . Fall, 2016. 2. Binary Diagrams. Binary diagrams have two components. We therefore usually choose to plot both T (temperature) and X (composition) with pressure held constant. P-X (T fixed) or P-T (X fixed) are also possible. INTRODUCTION. At sea level. At top of a mountain. Water boils at 100. C. Water boils at < 100. C. b.P. = f(P). P = 1.0133 bar. bp. = 100. C. P = 0.26 bar. bp. = 69. C. elevation = 8848 m. T-zero line, para-equilibrium. Experimental methods of phase diagram determination. C. D. Composition. a. Schematic phase diagram; b. Thermal analysis of alloy X. 2. ; c. XRD of series of alloys - phase boundaries from lattice parameter vs. composition; a. diffusion couple X. Application of phase diagrams in development of transparent polycrystalline oxides and thermal barrier coating. Phase diagrams for production of transparent polycrystalline materials. Polycrystalline oxides are used for optical applications. The Al. http://en.wikipedia.org/wiki/Phase_transition . The above picture shows a block of solid . Ar. melting and subliming after . exposur. to . aire. at roughly room temperature. . Phase Diagram of H. 2. Mohanty. NISER. Outline:. Phase Diagram of QCD. Experimental Realization. Summary . INSA Meeting, NISER – December 28-30, 2016. The Phase Diagram of QCD . 01/21. P. hase diagram . Phase diagram of Water . GLY 4200 . Fall, . 2017. 2. Unary Diagrams. Unary diagrams . have a single component. We therefore usually choose to plot both P (pressure) and T (temperature) since composition is not a variable. Examples. E. nergy vs. Composition . C. urves. To construct free energy vs. composition curves given a . eutectic . phase diagram and vice versa.. . Learning Objectives . Fall, 2017. 2. Binary Diagrams. Binary diagrams have two components. We therefore usually choose to plot both T (temperature) and X (composition) with pressure held constant. P-X (T fixed) or P-T (X fixed) are also possible. STATES OF MATTER. CH 11.4-7. CH 11.1-3. CH 5. The internet?. Phase Change. -. The transformation from one phase to another upon the . addition. or . release. of energy. . Temperature does not change during a phase change..