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The MgO-NiO phase diagram is shown below. On the diagram, draw the process of cooling from the liquid phase to the solid solution for an equimolar composition. Explain the process in detail, including compositions at each phase transition.

The MgO-NiO phase diagram is shown below. On the diagram, draw the process of cooling from the liquid phase to the solid solution for an equimolar composition. Explain the process in detail, including compositions at each phase transition.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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The image displays a phase diagram for a binary system consisting of nickel oxide (NiO) and magnesium oxide (MgO). The x-axis represents the composition in mole percentage (Mol %) ranging from 0% NiO to 100% MgO. The y-axis indicates temperature in degrees Celsius, ranging from 2000°C to 2800°C. The diagram is divided into three distinct regions: 1. **Liquid Region:** This area is seen at the upper part of the diagram and indicates the conditions under which the mixture exists entirely in the liquid phase. 2. **Solid Solution Region:** Located on the lower right side, this region shows where a solid solution forms. This means that NiO and MgO have fully solidified and mixed into a single, homogeneous solid phase. 3. **L+S.S. (Liquid + Solid Solution) Region:** This intermediate region between the liquid and solid solution areas represents the coexistence of both liquid and solid phases. It is where the mixture is partially solidified. The boundaries separating these regions are called phase boundaries or lines of equilibrium, which denote the transitions between different phases based on temperature and composition. The diagram is a useful tool for understanding how the phases of the mixture change with temperature and composition in the NiO-MgO system.
Transcribed Image Text:The image displays a phase diagram for a binary system consisting of nickel oxide (NiO) and magnesium oxide (MgO). The x-axis represents the composition in mole percentage (Mol %) ranging from 0% NiO to 100% MgO. The y-axis indicates temperature in degrees Celsius, ranging from 2000°C to 2800°C. The diagram is divided into three distinct regions: 1. **Liquid Region:** This area is seen at the upper part of the diagram and indicates the conditions under which the mixture exists entirely in the liquid phase. 2. **Solid Solution Region:** Located on the lower right side, this region shows where a solid solution forms. This means that NiO and MgO have fully solidified and mixed into a single, homogeneous solid phase. 3. **L+S.S. (Liquid + Solid Solution) Region:** This intermediate region between the liquid and solid solution areas represents the coexistence of both liquid and solid phases. It is where the mixture is partially solidified. The boundaries separating these regions are called phase boundaries or lines of equilibrium, which denote the transitions between different phases based on temperature and composition. The diagram is a useful tool for understanding how the phases of the mixture change with temperature and composition in the NiO-MgO system.
The MgO-NiO phase diagram is shown below. On the diagram, draw the process of cooling from the liquid phase to the solid solution for an equimolar composition. Explain the process in detail, including compositions at each phase transition.
Transcribed Image Text:The MgO-NiO phase diagram is shown below. On the diagram, draw the process of cooling from the liquid phase to the solid solution for an equimolar composition. Explain the process in detail, including compositions at each phase transition.
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