Thermal Equilibirum Calorimeter

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Homework Help Overview

The problem involves a copper calorimeter containing water and ice in thermal equilibrium, with an additional mass of lead introduced at a higher temperature. The objective is to determine the final temperature of the system, assuming no heat loss to the surroundings.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to identify the initial temperature of the ice, water, and calorimeter setup, expressing uncertainty about how to begin the problem. Some participants suggest considering the temperature at which ice and water coexist in thermal equilibrium.

Discussion Status

Participants are exploring the initial conditions of the system, with hints provided regarding the equilibrium temperature of ice and water. There is an acknowledgment of the need to clarify the initial temperature, with some participants confirming the relevance of the triple point in this context.

Contextual Notes

There is a mention of posting etiquette regarding forum categories, indicating a potential misunderstanding of the forum's structure. The discussion also reflects on the assumptions related to thermal equilibrium and the specific conditions of the materials involved.

TFM
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Question

A copper calorimeter can with mass 0.100 kg contains 0.160 kg of water and 0.018 kg of ice in thermal equilibrium at atmospheric pressure.

If 0.750 kg of lead at a temperature of 255 degrees C is dropped into the calorimeter can, what is the final temperature? Assume that no heat is lost to the surroundings.

Related Formula

Q_1 + Q_2 + Q_3 = 0

Q = mc\Delta T

\Delta T = T_{initial} - T_{final}

The initial temperature of the Ice/Water/Container, so I am not quite sure what the best way to start this question is.

Any suggestions?

TFM
 
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Please post your problems in the correct forum in future

As for your question, I offer you a hint: what is the temperature at which ice and water exists at thermal equilibrium?
 
Sorry, I htought there was something different:blushing: Feel free to move to 'Homework and Coursework: Introductory Physics' Category.

Would this be at the Triple point, which I is 0.0098 degrees celsius, 273.1598 Kelvin. This must be the intial Temperature?
 
TFM said:
Would this be at the Triple point, which I is 0.0098 degrees celsius, 273.1598 Kelvin. This must be the intial Temperature?
Correct! :approve:
 

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