There is 0.40 k g of water at 20C in a vacuum flask. A 0.10-kg piece of ice at 0C is placed in the flask. Assuming that the heat capacitance of the flask is very small and the heat exchange with the surroundings is negligible, find out which of the following statements correctly describes the situation in the flask after thermal equilibrium has been reached:
A There is both water and ice at 0C in the flask.
B There is 0.50 kg of water at about 0C in the flask.
C There is 0.50 kg of water at about 4C in the flask.
The specific heat of water is 4.19 kJ/(kgC), and the latent heat of fusion of ice is 333 kJ/kg.
A There is both water and ice at 0C in the flask.
B There is 0.50 kg of water at about 0C in the flask.
C There is 0.50 kg of water at about 4C in the flask.
The specific heat of water is 4.19 kJ/(kgC), and the latent heat of fusion of ice is 333 kJ/kg.
Asked Feb 02, 2011
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