define term calcination and roasting
Answers
Answer:
calcination:- Calcination refers to heating a solid to high temperatures in absence of air or oxygen, generally for the purpose of removing impurities or volatile substances.
roasting:- Roasting is a cooking method that uses dry heat where hot air covers the food, cooking it evenly on all sides with temperatures of at least 150 °C (300 °F) from an open flame, oven, or other heat source. Roasting can enhance the flavor through caramelization and Maillard browning on the surface of the food.
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Answer:
Calcination:Calcination is a process in which ore is heated in the absence of air or air might be supplied in limited quantity.
Roasting:Roasting involves heating of ore lower than its melting point in the presence of air or oxygen
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