Area Im 0.2 0.4 0.6 Mole fraction of naphthalene 0.8 1 a. Write the phases of naphthalene and biphenyl in different areas on graph (assume that these molecules are completely miscible in liquid phase and immiscible of phases Explanations (Which phases present?) 12 b. Explain briefly the eutectic point and explain its position on graph

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Solid-liquid phase diagram of naphthalene-biphenyl system was formed by determination of arrest and break points in cooling curves of different composition mixtures as follows
82 283 2222
90
80
Temperature (°C)
111
70
1
50
40
30
20
10
0
Area
Area 1
0.2
Phase Diagram
Area Il
Area IV
Area III
0.8
0.4
0.6
Mole fraction of naphthalene
1
a. Write the phases of naphthalene and biphenyl in different areas on graph (assume that these molecules are completely miscible in liquid phase and immiscible in solid phase)
of phases Explanations (Which phases present?)
12
b. Explain briefly the eutectic point and explain its position on graph
Transcribed Image Text:Solid-liquid phase diagram of naphthalene-biphenyl system was formed by determination of arrest and break points in cooling curves of different composition mixtures as follows 82 283 2222 90 80 Temperature (°C) 111 70 1 50 40 30 20 10 0 Area Area 1 0.2 Phase Diagram Area Il Area IV Area III 0.8 0.4 0.6 Mole fraction of naphthalene 1 a. Write the phases of naphthalene and biphenyl in different areas on graph (assume that these molecules are completely miscible in liquid phase and immiscible in solid phase) of phases Explanations (Which phases present?) 12 b. Explain briefly the eutectic point and explain its position on graph
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