Solution Found!
Answer: An ice-making machine operates in a Carnot cycle.
Chapter 20, Problem 16E(choose chapter or problem)
An ice-making machine operates in a Carnot cycle. It takes heat from water at \(0.0^{\circ} \mathrm{C}\) and rejects heat to a room at \(24.0^{\circ} \mathrm{C}\). Suppose that 85.0 kg of water at \(0.0^{\circ} \mathrm{C}\) are converted to ice at \(0.0^{\circ} \mathrm{C}\). (a) How much heat is discharged into the room? (b) How much energy must be supplied to the device?
Text Transcription:
0.0^circ C
24.0^circ C
Questions & Answers
QUESTION:
An ice-making machine operates in a Carnot cycle. It takes heat from water at \(0.0^{\circ} \mathrm{C}\) and rejects heat to a room at \(24.0^{\circ} \mathrm{C}\). Suppose that 85.0 kg of water at \(0.0^{\circ} \mathrm{C}\) are converted to ice at \(0.0^{\circ} \mathrm{C}\). (a) How much heat is discharged into the room? (b) How much energy must be supplied to the device?
Text Transcription:
0.0^circ C
24.0^circ C
ANSWER:Solution 16E
Here, we shall have to use the equation of coefficient of performance of a refrigerator, given by
…..(1)
Here, is the heat taken from a colder place,
is the amount of heat discarded to a warmer place and W is the work input.
Now,