4 A sample A of liquid water and a sample B of ice, of identical mass, are placed in a thermally insulated container and allowed to come to thermal equilibrium. Figure 18-25a is a sketch of the tempera- ture T of the samples versus time t. (a) Is the equilibrium temperature above, below, or at the freezing point of water? (b) In reaching equi- librium, does the liquid partly freeze, fully freeze, or undergo no freez- ing? (c) Does the ice partly melt, fully melt, or undergo no melting?
4 A sample A of liquid water and a sample B of ice, of identical mass, are placed in a thermally insulated container and allowed to come to thermal equilibrium. Figure 18-25a is a sketch of the tempera- ture T of the samples versus time t. (a) Is the equilibrium temperature above, below, or at the freezing point of water? (b) In reaching equi- librium, does the liquid partly freeze, fully freeze, or undergo no freez- ing? (c) Does the ice partly melt, fully melt, or undergo no melting?
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Transcribed Image Text:4 A sample A of liquid water and a sample B of ice, of identical
mass, are placed in a thermally insulated container and allowed to
come to thermal equilibrium. Figure 18-25a is a sketch of the tempera-
ture T of the samples versus time t. (a) Is the equilibrium temperature
above, below, or at the freezing point of water? (b) In reaching equi-
librium, does the liquid partly freeze, fully freeze, or undergo no freez-
ing? (c) Does the ice partly melt, fully melt, or undergo no melting?
Transcribed Image Text:(a)
(d)
T
T
(b)
T
T
t
(c)
t
-t (e)
(f)
Figure 18-25 Questions 4 and 5.
T
T
t
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