Consider the expression

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Presentation transcript:

Consider the expression Based on your intuition or knowledge, predict the dependence of the thermal conductivity coefficient on pressure? increases with p (B) decreases with p (C) is independent of p

Consider the expression Based on your intuition or knowledge, predict the dependence of the thermal conductivity coefficient on pressure? increases with p (B) decreases with p (C) is independent of p Reason: effects of increased number of molecules contributing to heat transport ( p) and shorter mean free path (  1/p) cancel each other. Exception: If p  0 and  > container dimensions (more collisions with the walls than with other molecules,   p