The space between two large parallel plates separated by a distance l = 5.0 mm is filled

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The space between two large parallel plates separated by a distance l = 5.0 mm is filled with helium under a pressure p = t.0 Pa. One plate is kept at a temperature tl = 17 °C and the other, at a temperature t2 = 37 °C. Find the mean free path of helium atoms and the heat flow density.
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Fundamentals of Heat and Mass Transfer

ISBN: 978-0471457282

6th Edition

Authors: Incropera, Dewitt, Bergman, Lavine

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