how many heat energy is required to change 200g of ice at -20°c to water at 70°c?
Answers
Explanation:
Ice at 0 degrees C is added to 200 gms of water initially at 70 degrees C in a vacuum flask. When 50 gms of ice has been added and has all melted, the temperature of the flask and the contents become 40 degrees C. When 80 gms of ice has been added and has all melted, the temperature becomes 10 degrees C. Neglecting heat loss to the surroundings, calculate latent heat of fusion of ice.
Heat:
Heat is defined as a form of energy transfer that occurs between objects at different temperatures or when one form of energy transforms into another form of energy. Heat is related to the temperature of objects, as the temperature is defined as the ability objects have to transfer heat energy to other objects. The amount of heat of an object can be determined with the following equation.
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