Time to raise temperature of frozen body

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Discussion Overview

The discussion revolves around the problem of determining the time required to defrost a frozen bottle of wine placed in a bucket of warm water. Participants explore the scenario's parameters and the potential for experimental versus theoretical approaches to find a solution.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested, Homework-related, Mathematical reasoning

Main Points Raised

  • One participant presents a scenario involving a frozen bottle of wine and asks how long it would take to return to a liquid state when placed in warm water.
  • Another participant suggests that practical experiments could yield results more effectively than theoretical calculations, emphasizing the need for thermal conductivity measurements.
  • Several participants point out the lack of critical information needed to solve the problem, such as the temperatures of the water and wine, the amount of water, and the size of the bottle.
  • A later reply provides specific values for the temperatures and capacities involved, referencing the equation Q=m c ∂T as part of the discussion.

Areas of Agreement / Disagreement

Participants generally agree that more information is needed to approach the problem effectively, but there is no consensus on whether to pursue a theoretical or experimental method.

Contextual Notes

Limitations include the need for specific measurements and assumptions regarding thermal properties, which are not fully addressed in the discussion.

Who May Find This Useful

Readers interested in thermodynamics, experimental physics, or practical applications of heat transfer may find this discussion relevant.

ColonelCronus
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I wanted to figure out some simple 'party' trivia, but it seems I suck a physics.

The scenario:

A bottle of wine has been placed in the freezer to cool. It is left there too long and freezes completely.

The host, fretting, decides to defrost the wine in a bucket of warm water. The water is not replenished.

How long will it take for the wine to return to liquid state?

Cheers Fellas and Ladyfolk.
 
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I do not see any need to invoke theoretical physics when experiments can be performed very cheaply.
For a theoretcal solution the themal condutivity of the bottle would need to be obtained by measurement so why not go straight ahead and do it with wine.
 
You haven't given us enough information. What is the temperature of the water, the wine, how much water is the wine in, how big is the bottle, etc.

Also, have you looked up the relevant equations and such to be able to do this?
 
Drakkith said:
You haven't given us enough information. What is the temperature of the water, the wine, how much water is the wine in, how big is the bottle, etc.

Temperature of water in the bucket: 50 deg C.
Temperature of frozen bottle of wine: -20 dec C.
Bottle capacity: 750 ml
Bucket capacity: 10 litres

Drakkith said:
Also, have you looked up the relevant equations and such to be able to do this?

Yes. Q=m c \partialT.
 

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