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Discussion :: Heat and Mass Transfer

  1. Fourier's law of heat conduction is valid for

    2. A.

     One dimensional cases only
    B.

     Two dimensional cases only
    C.

     Three dimensional cases only
    D.

     Regular surfaces having non-uniform temperature gradients

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    Answer : Option A

    Explanation :

    Fourier's law of heat conduction is valid for One dimensional cases only
    Fourier equation is valid for all matter solid, liquid or gas. The vector expression indicating that heat flow rate is normal to an isotherm and is in the direction of decreasing temperature.

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