Title

An experiment on the dynamics of thermal diffusion

Document Type

Article

Publication Date

7-1-2008

Abstract

We present an experiment that demonstrates thermal diffusion in metals via a dynamic measurement of the temperature in a metal rod as a function of position and time. From this single measurement and using simple heat flow equations, we can extract the thermal conductivity and the specific heat of the metal to within 5% of the accepted values. This experiment can be extended for advanced students, who can model the heat flow by including heat losses and finite heater models via a numerical solution of a partial differential equation. © 2008 American Association of Physics Teachers.

Publication Name

American Journal of Physics

Volume Number

76

First Page

637

Last Page

642

Issue Number

7

DOI

10.1119/1.2888544

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