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

AI Thread Summary
Bob's experiment involves a two-part metal rod made of silver and lead, aimed at measuring heat flow and entropy on a glacier. The setup includes a boiling water pot and a glacier hole, achieving thermodynamic equilibrium with the right end at 0.00°C. Key calculations include heat flow per second through the rod, the temperature at the interface between the rods, and the entropy changes for both the teapot and the glacier. The relevant equation for entropy is S = Q/T, but the discussion raises questions about the availability of the conduction coefficients for silver and lead. This experiment serves to illustrate the principles of thermodynamics in a practical setting.
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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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