Heat Energy and Power -- Heating ice in a copper pan

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Homework Help Overview

The discussion revolves around calculating the power required to heat a chunk of ice in a copper pan, specifically transitioning from 0 °C to a final temperature of 35 °C over a set time period. The subject area includes thermodynamics and heat transfer principles.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the potential methods for calculating the total heat energy involved, considering both the ice and the copper pan. There are questions about whether to add or subtract the heat contributions from each component and how to interpret the final temperature of the system.

Discussion Status

The discussion is ongoing, with participants exploring different aspects of the problem. Some have provided partial insights into the calculations, while others are seeking clarification on the state of the ice and the final temperature, indicating a collaborative effort to understand the problem better.

Contextual Notes

There is a lack of clarity regarding the final state of the ice and the specific temperature at which it transitions to water, which may affect the calculations. Participants are also navigating the constraints of the problem as posed in a homework context.

Madelin Pierce
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24
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Homework Statement


Calculate the power needed to heat a 1360 gram chunk of ice in a 600 gram copper pan from 0 ◦C to the system’s final temperature of 35◦C in a time of 10 minutes.

Homework Equations


Q=mcchange in temp
Q=mLf
P= energy/time

The Attempt at a Solution


I thought that adding the heat energy of ice, q=mLf, with the copper's heat, q=mc change in temp, and then dividing by time. Or would subtract copper from ice? And what do I do when it says temp of whole system?
 
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Madelin Pierce said:
thought that adding the heat energy of ice, q=mLf, with the copper's heat, q=mc change in temp, ...
... plus one more thing.
 
haruspex said:
... plus one more thing.
I don't what it is
 
Madelin Pierce said:
I don't what it is
What is the final state of the ice?
 
  • Like
Likes   Reactions: gneill
haruspex said:
What is the final state of the ice?
water
 
Madelin Pierce said:
water
At what temperature?
 

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