Find Final Temperature of Iron & Water in Thermal Equilibrium

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

Discussion Overview

The discussion revolves around calculating the final temperature of a piece of iron and water when they reach thermal equilibrium. It involves concepts from calorimetry and the specific heats of substances, focusing on the application of heat transfer principles.

Discussion Character

  • Homework-related
  • Mathematical reasoning
  • Technical explanation

Main Points Raised

  • One participant presents a scenario involving iron and water, stating the initial conditions and expressing confusion about the calculation method.
  • Another participant asks if the original poster is familiar with the formulas of calorimetry, implying that knowledge of these formulas is essential for solving the problem.
  • A different participant emphasizes the need to know the specific heats of the substances involved in the thermal equilibrium calculation.
  • Further clarification is sought regarding the terms used in the original equation, questioning the definitions and units of 'n' and 'T' to ensure they relate to heat or energy.

Areas of Agreement / Disagreement

Participants generally agree on the necessity of understanding calorimetry and specific heats for solving the problem. However, the discussion reveals some uncertainty regarding the correct application of formulas and the definitions of terms used in the calculations.

Contextual Notes

There are unresolved questions about the definitions and units of the variables used in the calculations, which may affect the understanding of the heat transfer process.

parwana
Messages
182
Reaction score
0
A piece of iron weighing 67.1 g is heated to 64.7 oC and dropped into a beaker containing 77.5 mL of water at a temperature of 15.8 oC. What is the final centigrade temperature of iron and water after they come to thermal equilibrium?


i tried doing it by doing

n3t3=n1t1+n2t2 and it didnt work, please help

I know heat gained= heat lost, and the final value of T should be same for both iron and water, since they are in equilibrium.
 
Chemistry news on Phys.org
Do you know the formulas of calorimetry??

Daniel.
 
ya you need to know the specific heats of each one of the substances.
 
parwana said:
A piece of iron weighing 67.1 g is heated to 64.7 oC and dropped into a beaker containing 77.5 mL of water at a temperature of 15.8 oC. What is the final centigrade temperature of iron and water after they come to thermal equilibrium?


i tried doing it by doing

n3t3=n1t1+n2t2 and it didnt work, please help

I know heat gained= heat lost, and the final value of T should be same for both iron and water, since they are in equilibrium.

What are n and T ? What are their units ? If you multiply them, do you get something that has units of heat/energy ? If not, what are you missing ?
 

Similar threads

  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
Replies
7
Views
2K
  • · Replies 4 ·
Replies
4
Views
4K
  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 10 ·
Replies
10
Views
7K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K