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Thermal diffusivity of a substance is

This question belongs to Mechanical Engineering Heat And Mass Transfer
Heat and Mass Transfer
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Thermal diffusivity of a substance is

Answer & Solution
Correct Answer: Option D
The thermal diffusivity of a substance or material is the thermal conductivity divided by the density and specific heat capacity at constant pressure and is a measure the rate of transfer of heat of a substance or material from the hot side to the cold side.
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