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A Carnot heat engine receives heat at 700 K and rejects the waste heat to the surroundings at 300 K. The output from the heat engine is used to drive a Carnot refrigerator that removes heat from the cooled space at -20 °C at a rate of 400 kJ/min and rejects it to the same surroundings at 300 K. Part B Determine the total rate of heat rejection to the surroundings. Express the heat transfer rate in kilojoules per minute to five significant figures. 15. ΑΣΦ ↓↑ Qo= 337.53 Submit vec Previous Answers Request Answer ? kJ/min

A Carnot heat engine receives heat at 700 K and rejects the waste heat to the surroundings at 300 K. The output from the heat engine is used to drive a Carnot refrigerator that removes heat from the cooled space at -20 °C at a rate of 400 kJ/min and rejects it to the same surroundings at 300 K. Part B Determine the total rate of heat rejection to the surroundings. Express the heat transfer rate in kilojoules per minute to five significant figures. 15. ΑΣΦ ↓↑ Qo= 337.53 Submit vec Previous Answers Request Answer ? kJ/min

Elements Of Electromagnetics
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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I have been working on this problem for a while and keep getting wrong answers with many different meathods how do I solve for Q0 here?

A Carnot heat engine receives heat at 700 K and rejects the waste heat to the surroundings at 300 K. The output from the heat engine is used to drive a Carnot refrigerator that removes heat from the cooled space at -20 °C at a rate of 400 kJ/min and rejects it to the same surroundings at 300 K. Part B Determine the total rate of heat rejection to the surroundings. Express the heat transfer rate in kilojoules per minute to five significant figures. 17| ΑΣΦ | 11 VE Q = 337.53 Submit vec Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining ? kJ/min
Transcribed Image Text:A Carnot heat engine receives heat at 700 K and rejects the waste heat to the surroundings at 300 K. The output from the heat engine is used to drive a Carnot refrigerator that removes heat from the cooled space at -20 °C at a rate of 400 kJ/min and rejects it to the same surroundings at 300 K. Part B Determine the total rate of heat rejection to the surroundings. Express the heat transfer rate in kilojoules per minute to five significant figures. 17| ΑΣΦ | 11 VE Q = 337.53 Submit vec Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining ? kJ/min
A Carnot heat engine receives heat at 700 K and rejects the waste heat to the surroundings at 300 K. The output from the heat engine is used to drive a Carnot refrigerator that removes heat from the cooled space at -20 °C at a rate of 400 kJ/min and rejects it to the same surroundings at 300 K. Part A Determine the rate of heat supplied to the heat engine. Express the heat transfer rate in kilojoules per minute to five significant figures. QH = 130.04 kJ/min Submit Previous Answers > Correct Correct answer is shown. Your answer 129.55 kJ/min was either rounded differently or used a different number of significant figures than required for this part.
Transcribed Image Text:A Carnot heat engine receives heat at 700 K and rejects the waste heat to the surroundings at 300 K. The output from the heat engine is used to drive a Carnot refrigerator that removes heat from the cooled space at -20 °C at a rate of 400 kJ/min and rejects it to the same surroundings at 300 K. Part A Determine the rate of heat supplied to the heat engine. Express the heat transfer rate in kilojoules per minute to five significant figures. QH = 130.04 kJ/min Submit Previous Answers > Correct Correct answer is shown. Your answer 129.55 kJ/min was either rounded differently or used a different number of significant figures than required for this part.
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