Лаг1989 задача №8.47

Between the two plates located at a distance L = 2 mm from each other, there is air under normal conditions. Between the plates, a temperature difference of 20K is maintained. The area of each plate S = 150cm ². Find the amount of heat Q transferred from one plate to another for a time t = 0.5 h. The effective diameter of the air molecule is nm.

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