Question

A refrigerator takes in 20.0 J of work and exhausts 50.0 J of heat. What is...

A refrigerator takes in 20.0 J of work and exhausts 50.0 J of heat. What is its coefficient of performance? (b) If this refrigerator operates between 275. K and 300. K, what is the maximum COP? Is this a realistic system? Explain why or why not.

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A certain refrigerator requires 35 J of work to remove 190 J of heat from its...
A certain refrigerator requires 35 J of work to remove 190 J of heat from its interior. (a) What is its coefficient of performance? (b) How much heat is ejected to the surroundings at 16 °C? J (c) If the refrigerator cycle is reversible, what is the temperature inside the refrigerator? °C
A refrigerator with a coefficient of performance of 1.70 absorbs 3.60×104 J of heat from the...
A refrigerator with a coefficient of performance of 1.70 absorbs 3.60×104 J of heat from the low-temperature reservoir during each cycle. How much mechanical work is required to operate the refrigerator for a cycle? How much heat does the refrigerator discard to the high-temperature reservoir during each cycle?
A refrigerator runs on the vapor-compression cycle. The boiler operates at T=265 K and the condenser...
A refrigerator runs on the vapor-compression cycle. The boiler operates at T=265 K and the condenser operates at 305 K. The compressor has an efficiency of 85%. a. What is the maximum attainable coefficient of performance for Freon 22? b. What is the maximum attainable coefficient of performance for refrigerant R-422A?
Chapter 16 Part 2: Question 16.3 An ideal Carnot engine takes 2000 J of heat from...
Chapter 16 Part 2: Question 16.3 An ideal Carnot engine takes 2000 J of heat from a reservoir at 500 K, does some work, and discards some heat to a reservoir at 350 K. Let’s see what happens if the Carnot engine described is run backward as a refrigerator.What is its performance coefficient? SOLUTION SET UP AND SOLVE We know that a refrigerator will act like an engine but with the signs for QH, QC, and Wreversed because the cycle...
You place your lunch leftovers in the refrigerator. Suppose the refrigerator needs to remove 1.4690E+4 J...
You place your lunch leftovers in the refrigerator. Suppose the refrigerator needs to remove 1.4690E+4 J of thermal energy from your lunch to cool it to the temperature of the inside of the refrigerator. In the meantime, this means the refrigerator produces 1.8957E+4 J of thermal energy that it expels into the kitchen as a result. What is the total work done by the compressor motor in the refrigerator? (Ignore any thermal loses due to friction in the motor.) What...
You place your lunch leftovers in the refrigerator. Suppose the refrigerator needs to remove 2.4280E+4 J...
You place your lunch leftovers in the refrigerator. Suppose the refrigerator needs to remove 2.4280E+4 J of thermal energy from your lunch to cool it to the temperature of the inside of the refrigerator. In the meantime, this means the refrigerator produces 3.2787E+4 J of thermal energy that it expels into the kitchen as a result. a.) What is the total work done by the compressor motor in the refrigerator? (Ignore any thermal loses due to friction in the motor.)...
10.0 L of an ideal diatomic gas at 2.00 atm and 275 K are contained in...
10.0 L of an ideal diatomic gas at 2.00 atm and 275 K are contained in a cylinder with a piston. The gas first expands isobarically to 20.0 L (step 1). It then cools at constant volume back to 275 K (step 2), and finally contracts isothermally back to 10.0 L (step 3). a) Show the series of processes on a pV diagram. b) Calculate the temperature, pressure, and volume of the system at the end of each step in...
A Carnot refrigerator transfers heat from its inside (5.63 oC) to the room air outside (22.0...
A Carnot refrigerator transfers heat from its inside (5.63 oC) to the room air outside (22.0 oC). (a) Find the coefficient of performance of the refrigerator. (b) Determine the magnitude of the minimum work needed to cool 5.84 kg of water from 22.0 to 5.63 oC when it is placed in the refrigerator.
In a Carnot process, the initial heat of a system is 50 J, and 300 K....
In a Carnot process, the initial heat of a system is 50 J, and 300 K. The object then performs 15 J of work on the surroundings. What is the entropy of this system?
How much work must be done by a Carnot refrigerator to transfer 1.00 J as heat...
How much work must be done by a Carnot refrigerator to transfer 1.00 J as heat (a) from a reservoir at 0.910°C to one at 34.0°C, (b) from a reservoir at -79.0°C to one at 34.0°C, (c) from a reservoir at -171°C to one at 34.0°C, and (d) from a reservoir at -240°C to one at 34.0°C?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT