(a) A freezer maintains an interior temperature inside of -30.0°C and has a coefficient of performance of 3.00. The freezer sits in a room with a temperature of 16.0°C. The freezer is able to completely convert 24.0 g of liquid water at 16.0°C to ice at -30.0°C in one minute. What input power (in watts) does the freezer require? (The specific heat of liquid water is 4.186 J/(g - °C), the specific heat of ice is 2.090 J/(g - °C), and the latent heat of fusion of water is 334 J/g.) w (b) What If? In reality, only part of the power consumption of a freezer is used to make ice. The remainder is used to maintain the temperature of the rest of the freezer. Suppose, however, that 100% of a freezer's typical power consumption of 160 W is available to make ice. The freezer has the same coefficient of performance as given above. How many grams per minute of water at 16.0°C could this freezer convert to ice at -30.0°C? | g/min
(a) A freezer maintains an interior temperature inside of -30.0°C and has a coefficient of performance of 3.00. The freezer sits in a room with a temperature of 16.0°C. The freezer is able to completely convert 24.0 g of liquid water at 16.0°C to ice at -30.0°C in one minute. What input power (in watts) does the freezer require? (The specific heat of liquid water is 4.186 J/(g - °C), the specific heat of ice is 2.090 J/(g - °C), and the latent heat of fusion of water is 334 J/g.) w (b) What If? In reality, only part of the power consumption of a freezer is used to make ice. The remainder is used to maintain the temperature of the rest of the freezer. Suppose, however, that 100% of a freezer's typical power consumption of 160 W is available to make ice. The freezer has the same coefficient of performance as given above. How many grams per minute of water at 16.0°C could this freezer convert to ice at -30.0°C? | g/min
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:(a) A freezer maintains an interior temperature inside of -30.0°C and has a coefficient of performance of 3.00. The
freezer sits in a room with a temperature of 16.0°C. The freezer is able to completely convert 24.0 g of liquid water
at 16.0°C to ice at -30.0°C in one minute. What input power (in watts) does the freezer require? (The specific heat
of liquid water is 4.186 J/(g · °C), the specific heat of ice is 2.090 J/(g · °C), and the latent heat of fusion of water is
334 J/g.)
w
(b) What If? In reality, only part of the power consumption of a freezer is used to make ice. The remainder is used to
maintain the temperature of the rest of the freezer. Suppose, however, that 100% of a freezer's typical power
consumption of 160 W is available to make ice. The freezer has the same coefficient of performance as given above.
How many grams per minute of water at 16.0°C could this freezer convert to ice at -30.0°C?
g/min
Expert Solution
Step 1
Coefficient of Performance: It is defined as the ratio of the desired effect to the power input
It is denoted by COP
If the COP of the refrigerator is high then the desired output from the refrigerator will also be high.
COP is a dimensionless quantity
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