Can Bob measure heat flow and entropy on a glacier using a metal rod experiment?

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SUMMARY

Bob's experiment on a glacier involves a two-part metal rod made of silver and lead, measuring heat flow and entropy. The silver rod is 0.5454 meters long with a cross-sectional area of 3.1416 cm², while the lead rod is 0.3554 meters long. Key calculations include heat flow through the rod, the temperature at the interface (T2), and the change in entropy for the teapot, glacier, and universe, utilizing the formula S = Q/T. The thermal conductivity coefficients for silver and lead are critical for accurate calculations.

PREREQUISITES
  • Understanding of thermal conductivity and its coefficients for metals
  • Familiarity with thermodynamic principles, specifically heat transfer
  • Knowledge of entropy calculations in thermodynamics
  • Proficiency in using the formula S = Q/T for entropy
NEXT STEPS
  • Research thermal conductivity values for various metals, including silver and lead
  • Study heat transfer equations and their applications in real-world scenarios
  • Explore advanced entropy calculations in thermodynamic systems
  • Investigate practical applications of thermodynamics in glacial environments
USEFUL FOR

This discussion is beneficial for physics students, thermodynamics researchers, and environmental scientists interested in heat transfer and entropy in glacial studies.

TungYee32
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Homework Statement



Bob who is working on a glacier wants to experiment with heat and has constructed a two part metal rod. The left rod is silver and has length L1 = .5454 M, and has a cross sectional area A = 3.1416 CM^2. It is joined end to end with a lead rod of identical diameter and length L2 = .3554 M. Bob has insulated the curved surface, placed the left end in a pot of boiling water and the right end in a hole in the glacier. After thermodynamic equilibrium has been achieved, there is a puddle of water in the glacier and the assumption that the right end is at a temperature T1 = 0.00 deg C.

1) Calculate the heat flow per second through the rod.
2) Calculate the temperature, T2, at the interface between the two rods.
3) Calculate the change in entropy of the teapot in one second.
4) Calculate the change in entropy of the glacier in one second.
5) Calculate the change in entropy of the universe in one second.

Homework Equations



S = Q/T


The Attempt at a Solution

 
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values of conduction coefficient of silver and lead are provided or not?
 

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