Physics I / Heat Transfer: Conduction, Convection, Radiation
Practice question · Fill in the blanks

Complete the statement with the correct term.

The law describing heat conduction through a slab, Q/t=kAΔT/Lt = kA \Delta T/L, is known as ______ law.

Word bank: displaced · pressure · frequency · Fourier's

Hints
  1. The rate depends on the material property, the area and the steepness.
  2. The steepness is the temperature difference divided by the thickness.
Show the answer

The law describing heat conduction through a slab, Q/t=kAΔT/Lt = kA \Delta T/L, is known as Fourier's law.

Why

Fourier's law: heat flux \propto thermal conductivity kk, area AA and temperature gradient ΔT/L\Delta T/L.

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