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Which law governs the thermal conductivity?

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+1 vote
in Food Processing Unit Operations by (110k points)
Which law governs the thermal conductivity?

(a) Fourier’s law

(b) Pascal law

(c) Newton law

(d) Planks law

The question was asked in an internship interview.

This interesting question is from Heat Conduction topic in portion Heat Transfer Theory of Food Processing Unit Operations

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Right option is (a) Fourier’s law

The best I can explain: The Fourier’s law governs the thermal conductivity. This law states that the time rate of heat transfer through a material is directly proportional to the negative gradient in the temperature and to area, at its right angle to that gradient through which the heat flows.

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