Heat Loss from Boiling Water: Conduction & Convection

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SUMMARY

Heat loss from a cup filled with boiling water occurs through two primary mechanisms: conduction and convection. Convection is responsible for heat loss at the top of the cup, where the water is in contact with air, while conduction accounts for heat loss through the sides of the cup. Additionally, conduction can occur within the water itself, although this aspect was not the focus of the discussion.

PREREQUISITES
  • Understanding of heat transfer mechanisms: conduction and convection
  • Basic knowledge of thermodynamics principles
  • Familiarity with the properties of water and air
  • Ability to analyze heat transfer in practical scenarios
NEXT STEPS
  • Research the principles of heat transfer in fluids
  • Explore the role of thermal conductivity in conduction
  • Study the effects of surface area and temperature difference on convection rates
  • Investigate real-world applications of heat loss in cooking and insulation
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Students studying thermodynamics, educators teaching heat transfer concepts, and anyone interested in the practical applications of conduction and convection in everyday scenarios.

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Homework Statement


If I have a cup filled with boiling water, where will heat loss by conduction and heat loss by convection occur?


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The Attempt at a Solution


I think that heat loss out of the top of the cup (water in contact with air) will be convection, and heat loss out of the sides will be conduction. Is this correct?
 
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Hi ProgMetal! :smile:
ProgMetal said:
I think that heat loss out of the top of the cup (water in contact with air) will be convection, and heat loss out of the sides will be conduction. Is this correct?

Looks good! :biggrin:

(I suppose there's also conduction within the water itself, but I suspect they're not asking for that.)
 

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