Water at 0°C sits in a large insulated vessel and its vapour is pumped out continuously. The latent heat of vaporization is nine times the latent heat of fusion. The fraction of water that finally freezes is:
Options:
Answer:
C
Solution:
Let f freeze: $f L_{f} = (1 - f) (9 L_{f})$ , so $f = \frac{9}{10}$ . C.

Question

Water at 0°C sits in a large insulated vessel and its vapour is pumped out continuously. The latent heat of vaporization is nine times the latent heat of fusion. The fraction of water that finally freezes is:

Options:

Answer:

C

Solution:

Let f freeze: $f L_{f} = (1 - f) (9 L_{f})$ , so $f = \frac{9}{10}$ . C.

TestHub · Accepted Answer

Let f freeze: f L f ​ = ( 1 − f ) ( 9 L f ​ ) , so f = 10 9 ​ . C.

Physics - Heat & Thermo Question with Solution | TestHub

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