Energy transfer from cool part to hot part(q38)

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SUMMARY

The discussion centers on the operation of refrigerators, specifically how they transfer heat from the cooler interior to the warmer exterior. Participants clarify that refrigerators function by removing heat from inside and expelling it outside, which contradicts the common understanding that energy flows from hot to cool. The correct answer to the posed question is identified as option B, indicating that the refrigerator's mechanism is essential for understanding energy transfer in thermodynamic systems.

PREREQUISITES
  • Basic understanding of thermodynamics
  • Knowledge of refrigeration cycles
  • Familiarity with heat transfer principles
  • Understanding of energy conservation laws
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  • Research the refrigeration cycle and its components, including compressors and condensers
  • Study the laws of thermodynamics, particularly the second law regarding heat transfer
  • Explore practical applications of refrigeration in various industries
  • Learn about alternative cooling technologies, such as thermoelectric coolers
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Students of thermodynamics, engineers in HVAC (Heating, Ventilation, and Air Conditioning), and anyone interested in the principles of energy transfer and refrigeration technology.

jack1234
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For this question:
http://tinyurl.com/3bozr6

the answer is c.

Can anybody kindly explain how this is achieve by refrigerator?
Because according for what I study so far , the energy is transfer from hot part to cool part...
 
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jack1234 said:
For this question:
http://tinyurl.com/3bozr6

the answer is c.

Can anybody kindly explain how this is achieve by refrigerator?
Because according for what I study so far , the energy is transfer from hot part to cool part...

you said c, but the answer refrigerator is answer b.

Refrigerators remove heat from the inside of it and pump it to the outside of it, the inside is usually cooler, so when you put your leftovers in it, the fridge pumps the heat from the food out of the 'cool' part (the inside of it) and takes it to the outside of it (the warm part).
 

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