Determine the parallel plate separation distance L, above which the thermal resistance associated with molecule-surface collisions R

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Determine the parallel plate separation distance L, above which the thermal resistance associated with molecule-surface collisions R_t,m-sis less than 1% of the resistance associated with molecule–molecule collisions, R_t,m-mfor

(i) Air between steel plates with α_t=0.92 and

(ii) Helium between clean aluminum plates with α_t= 0.02. The gases are at atmospheric pressure, and the temperature is T = 300 K.

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Fundamentals Of Heat And Mass Transfer

ISBN: 9780470501979

7th Edition

Authors: Theodore L. Bergman, Adrienne S. Lavine, Frank P. Incropera, David P. DeWitt

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Question Posted: Oct 10, 2022 02:35 AM

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Determine the parallel plate separation distance L, above which the thermal resistance associated with molecule-surface collisions R

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i The thermal resistance associated with moleculesurface collisions Rtms is given by Rtms 1ht where h is the Planck constant t is the absolute tempera...View the full answer

Fundamentals Of Heat And Mass Transfer

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