Test%201 - MATLS 3T04 "Phase Transformations"...

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MATLS 3T04 “Phase Transformations” Test 1 Problem 1 (30 points) A concentration dependency of the molar Gibbs energy of the Al–Mg liquid solution at and is presented in 0 400 C T = 1atm P = Figure 1. Reference states for the components are chosen as pure solid FCC-Al at temperature equal to temperature of the melt, and pure solid HCP-Mg at temperature equal to temperature of the melt, correspondingly. 1. What entities can the ordinates of points and c f be identified with? Explain why. What thermodynamic properties can the differences ca and f d be associated with? Explain why. 2. What will happen with the ordinates of the points and d if temperature changes from 400ºC to 900ºC while pressure remaining equal to 1 atm? a 3. What can be said about the ordinates of the points and if temperature remains equal to 400ºC, but pressure changes from 1 atm to 10 6 atm? Position of which point – or d – will be affected more by increasing pressure?
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Test%201 - MATLS 3T04 "Phase Transformations"...

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