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Discussion :: Heat and Mass Transfer

  1. Thermal diffusivity is

    2. A.

     A dimensionless parameter
    B.

     Function of temperature
    C.

     Used as mathematical model
    D.

     A physical property of the material

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    Answer : Option D

    Explanation :

    Thermal Diffusivity is defined as the ratio of heat conducted to the heat energy stored per unit volume of a material. Its SI unit is m^2/s. It describes how fast heat can be transferred across the medium. Greater the value of thermal diffusivity, faster is the propagation of heat through the medium

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