Determine the composition of the phases;

The question is the image, and could you explain to me how to get the answer because the teacher never discusssed this type of exercise in class and i don't know the proccess of solving it

According to the following graph, two samples of 1080 steel are cooled from the eutectoid temperature, one at a cooling rate of 250°C/s and the other at a cooling rate of 7.27x10-8 °C/s. Specify the phases obtained and explain their formation from thermodynamic and kinetic perspectives. Also, briefly describe their formation. Draw the microstructure of the phases obtained. Sıcaklık (C) 800 700 600 500 400 300 200 100 0 10 1 T M(başlama) M(% 50) M(% 90) 10 M+O -Otektoid Sıcaklık 10² Zaman (s) % 50 10³ 104 105

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In a binary phase diagram ( pressure omitted) what is the maximum number of phases that can coexist for at least one degree of freedom?

Consider the phase diagram below. The three points A, B, and C are at concentrations of 27, 31.9, and 33.8 wt% Ni respectively. The ends of the tie line are at C1 = 25% wt% Ni and C2 = 35 wt% Ni. What are the weight fractions of the alpha phase at A and the L phase at B, as well as the alpha phase/L phase ratio at C? T(°C) 1300-L (liquid) 1200 20 ABC L + a C1 30 S C2 liquidus 40 L + a solidus α (solid). O a. Walpha=0.12; WL=0.41; Walpha/WL = 9.41 O b. Walpha=0.27; WL-0.26; Walpha/WL = 11.11 O c. Walpha=0.15; WL-0.26; Walpha/WL = 11.80 Od. Walpha=0.20; WL-0.31; Walpha/WL = 7.33 50 wt% Ni

Imagine a substance with the following points on the phase diagram: a triple point at .5 atm and -5ºC; a normal melting point at 20ºC; normal boiling point at 150ºC; and a critical point at 5 atm and 1000ºC. The solid liquid line is “normal” (meaning positive sloping). For this, complete the following: 1. Describe what one would see at pressures and temperatures above 5 atm and 1000ºC. 2. Describe what will happen to the substance when it begins in a vacuum at -15 ºC and is slowly pressurized. 3. Describe the phase changes from -80ºC to 500ºC at 2 atm.

Could someone explain in detail how to solve this problem please. I really dont understand it. Thank you so much.

Consider the phase diagram below. The three points A, B, and C are at concentrations of 26.4, 31.3, and 34 wt% Ni respectively. The ends of the tie line are at C1 = 25% wt% Ni and C2 = 35 wt% Ni. What are the weight fractions of the alpha phase at A and the L phase at B, as well as the alpha phase/L phase ratio at C? T(°C) 1300 L (liquid) 1200 20 A B C L + a C1 S liquidus L + a solidus a (solid) 50 wt% Ni a. Walpha=0.21; WL=0.33; Walpha/WL = 13.17 b. Walpha=0.09; WL=0.32; Walpha/WL = 15.00 c. Walpha=0.07; WL=0.46; Walpha/WL = 11.17 d. Walpha=0.14; WL=0.37; Walpha/WL = 9.00

Calculate the slope of the liquid/solid phase boundary (in a temperature-pressure phase diagram) for ethanol, at T = 158.7 K. Assume the density of solid ethanol at that temperature is 0.83 g/cm3 , and that the density of liquid ethanol doesn't vary with temperature. Can someone explain this? I'm very confused.