Question

Liquid 2800 5000 2400 MgO (ss) + Liquid MgAl2O4 (ss) + Liquid Al2O3 + Liquid 4500 Temperature (°C) 2000 MgO (ss) MgAl2O4 (ss) 4000 3500 Temperature (°F) 1600 MgO (ss) + MgAl2O4 (ss) MgAl2O4 (ss) + Al2O3 3000 2500 1200 2000 0 (MgO) 20 40 60 80 100 (Al2O3) Composition (wt% Al2O3)

          Liquid
2800
5000
2400
MgO (ss) + Liquid
MgAl2O4 (ss) + Liquid
Al2O3 + Liquid
4500
Temperature (°C)
2000
MgO (ss)
MgAl2O4 (ss)
4000
3500
Temperature (°F)
1600
MgO (ss) + MgAl2O4 (ss)
MgAl2O4 (ss) + Al2O3
3000
2500
1200
2000
0 (MgO)
20
40
60
80
100 (Al2O3)
Composition (wt% Al2O3)

Liquid
2800
5000
2400
MgO (ss) + Liquid
MgAl2O4 (ss) + Liquid
Al2O3 + Liquid
4500
Temperature (°C)
2000
MgO (ss)
MgAl2O4 (ss)
4000
3500
Temperature (°F)
1600
MgO (ss) + MgAl2O4 (ss)
MgAl2O4 (ss) + Al2O3
3000
2500
1200
2000
0 (MgO)
20
40
60
80
100 (Al2O3)
Composition (wt% Al2O3)

Added by Michael S.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Madhur L

06/15/2023

Step 1

Then, move vertically up to the temperature of 2200°C. Show more…

Show all steps

Thanks for your feedback!

The following questions refer to the MgO-Al2O3 phase diagram below: a) For the overall composition 30 wt% Al2O3-70 wt% MgO, what phase (or phases) are present at 2200°C? b) What is the composition of the phase (or phases) in part [a]? c) For the overall composition 75 wt% Al2O3-25 wt% MgO, what phase (or phases) are present at 1800°C? d) What is the composition of the phase (or phases) in part c? e) Which phase has a higher solid solubility at 1800°C, MgO or Al2O3?