Comment on the statement. The thermal conductivity of solid metals increases with rise in temperature.

Thermal conductivity of solid metals with rise in temperature normally decreases. Some factors are known to influence the thermal conductivity of metals

  • Chemical composition
  • Atomic structure
  • Phase changes
  • Grain size
  • Temperature and pressure

The thermal conductivity of the metal is directly proportional to the absolute temperature and mean free path of the molecules. The mean free path decreases with the increase in temperature so that the thermal conductivity decreases with the temperature.

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