What is the temperature inside the freezer?

  • Thread starter Thread starter AllenHe
  • Start date Start date
  • Tags Tags
    Temperature
Click For Summary

Homework Help Overview

The problem involves a piece of copper being cooled in a freezer and then placed in water, resulting in some of the water freezing. The objective is to determine the temperature inside the freezer based on the mass of the copper and the amount of water that freezes.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the conservation of energy principle as a potential approach, questioning the relationship between the energy lost by the copper and the energy gained by the water.

Discussion Status

Some participants are exploring the conservation of energy concept, while others are seeking clarification on the relevant formulas and principles involved. There is an ongoing dialogue about the specifics of the energy transfer process.

Contextual Notes

Participants note that only 4 grams of water freeze, which may influence the calculations and assumptions regarding energy transfer. The discussion is framed within the context of a homework assignment, suggesting constraints on the methods that can be employed.

AllenHe
Messages
74
Reaction score
0

Homework Statement


A piece of copper of mass 170g is cooled in a freezer. it's then dropped into water at 0degree,causing 4 g of water to freeze.determine the temperature inside the freezer.


Homework Equations





The Attempt at a Solution

 
Physics news on Phys.org
Is all the water frozen?
 
No.Only 4g
 
try conservation of energy principle:
ignoring heat losses to the surroundings, then
energy guven out by copper = energy gained by water
 
Okay.But I don't understand that formula.Can you explain to me?
 

Similar threads

  • · Replies 10 ·
Replies
10
Views
4K
  • · Replies 2 ·
Replies
2
Views
5K
  • · Replies 11 ·
Replies
11
Views
2K
Replies
7
Views
3K
  • · Replies 3 ·
Replies
3
Views
2K
Replies
6
Views
5K
Replies
2
Views
2K
Replies
3
Views
1K
  • · Replies 4 ·
Replies
4
Views
10K
  • · Replies 12 ·
Replies
12
Views
4K