The following is a hypothetical binary phase diagram with various temperatures highlighted as (T) where n corresponds to a numeric value. Use the diagram to L T2 answer the following questions: 1. How many solid phases are there in the T4 diagram? Ans.: 2. Identify the melting point of A & B? Ans: m, is & mg is T7 3. How many invariant points are there? Write To the reactions. Tu A WB Temperature

Shown to the right is the solid-liquid phase behavior for mixtures of component A and component B at 1 atm. Use the phase diagram to answer the following questions. a) Specify the melting point of substance B at 1 atm b) What is the maximum composition (mole fraction) of component B that is possible for the mixture to exist in phase S2? At what temperature does this occur? c) 20mol of component A and 180mol of component B are mixed at 350°C and 1 atm. The mixture is cooled at constant pressure to 200°C. i) What phases are present at the final state? ii) What is the composition of each phase at the final state? iii) What is the number of moles of each phase at the final state?

Use the Cu-Ag Phase Diagram below to answer the following questions Composition (at% Ag) 20 40 60 80 100 2200 1200 A 2000 Liquidus 1000 Liquid 1800 Solidus C F a +L 1600 * 800 779 C (T) B+L E G 91.2 (Ceg 8.0 71.9 1400 (Cg). 1200 600 Solvus 1000 a +B 800 400 600 200 o 400 100 20 40 60 80 (Cu) Composition (wt% Ag) (Ag) Temperature ("C) Temperature ("F)

100 atm 1 atm 0.118 atm 114 °C 184 °C 535 °C Temperature (not to scale) a.) Use the above generic phase diagram, clearly identify where you would find the following: Gas, Liquid, Solid, Triple Point, Draw arrows and label to indicate the six transitions (melting, freezing, sublimation, deposition, vaporization and condensation) b.) Based on the above phase diagram, what phase would you be in at a pressure of 50 atm and 300°C? c.) Based on the above phase diagram at what temperature in °C would vaporization occur under normal conditions? d.) If the pressure was 0.050 atm and 425°C, what phase would you be in? e.) If the pressure was 0.118 atm and temperature was 114°C, what phase(s) would you be in? f.) At approximately what temperature would the normal freezing point be in °C? g.) If the pressure was 0.105 atm and starting at a temperature of 32°C to 450°C what phase changes would occur (put in increasing temperature order). Pressure (not to scale)