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At what temperature is gypsum heated to form Plaster of Paris?
- a)90°C
- b)100°C
- c)110°C
- d)120°C
Correct answer is option 'B'. Can you explain this answer?
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At what temperature is gypsum heated to form Plaster of Paris?a)90°...
Formation of Plaster of Paris
Plaster of Paris is a form of gypsum that is created by heating gypsum to a specific temperature. The process involves the following steps:
1. Heating temperature: Gypsum is heated to a specific temperature to form Plaster of Paris.
2. Temperature required: The temperature required to form Plaster of Paris is 100°C.
3. Heating process: Gypsum is heated in a kiln or oven until it reaches the desired temperature.
4. Chemical reaction: During the heating process, gypsum undergoes a chemical reaction known as calcination. This reaction involves the loss of water molecules from the gypsum, resulting in the formation of Plaster of Paris.
5. Water loss: The heating process causes the gypsum to lose approximately 75% of its water content, leaving behind a dry powder known as Plaster of Paris.
6. Setting process: Plaster of Paris can be mixed with water to form a paste that can be molded into various shapes. When the paste is allowed to dry, it hardens and forms a solid structure.
Therefore, the correct answer is B: 100°C. At this temperature, gypsum is heated to form Plaster of Paris through the process of calcination.
Plaster of Paris is a form of gypsum that is created by heating gypsum to a specific temperature. The process involves the following steps:
1. Heating temperature: Gypsum is heated to a specific temperature to form Plaster of Paris.
2. Temperature required: The temperature required to form Plaster of Paris is 100°C.
3. Heating process: Gypsum is heated in a kiln or oven until it reaches the desired temperature.
4. Chemical reaction: During the heating process, gypsum undergoes a chemical reaction known as calcination. This reaction involves the loss of water molecules from the gypsum, resulting in the formation of Plaster of Paris.
5. Water loss: The heating process causes the gypsum to lose approximately 75% of its water content, leaving behind a dry powder known as Plaster of Paris.
6. Setting process: Plaster of Paris can be mixed with water to form a paste that can be molded into various shapes. When the paste is allowed to dry, it hardens and forms a solid structure.
Therefore, the correct answer is B: 100°C. At this temperature, gypsum is heated to form Plaster of Paris through the process of calcination.
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