Use the Gibbs phase rule, Eq. 2.37, to explain your answers to these questions aboutthe ternary...

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Use the Gibbs phase rule, Eq. 2.37, to explain your answers to these questions aboutthe ternary eutectic diagram shown in Fig XXXXXXXXXXa) How many phases are in equilibrium at the central eutectic point?(b) Why is the ß–liquid boundary a surface in this model?(c) How many phases are in equilibrium at the compositionA0.33B0.33C0.34 for the lowest temperature shown in the model?(d) If pressure were applied to this system, what would happen to the liquidussurfaces and the eutectic point? Assume that the liquid has a larger specific volumethan any of the solid phases. Assume also that the three solid phases haveidentical specific volumes, and equal compressibilities for all compositions.

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David · Accepted Answer

Use the Gibbs phase rule, Eq. 2.37, to explain your answers to these questions about 
the ternary eutectic diagram shown in Fig. 2.14. 
(a) How many phases are in equilibrium at the central eutectic point? 
(b) Why is the ß–liquid boundary a surface in this model? 
(c) How many phases are in equilibrium at the composition A= 0.33, B= 0.33, C= 0.34 
for the lowest temperature shown in the model? 
(d) If pressure were applied to this system, what would happen to the liquidus surfaces 
and the eutectic point? 
 Assume that the liquid has a larger specific volume than any of the solid phases. 
Assume also that the three solid phases have identical specific volumes, and equal 
compressibilities for all compositions.
Solution : 
.

Use the Gibbs phase rule, Eq. 2.37, to explain your answers to these questions aboutthe ternary eutectic diagram shown in Fig XXXXXXXXXXa) How many phases are in equilibrium at the central eutectic...

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