Concept explainers
(a)
The mean free path of nitrogen molecule at sea level.
(a)
Answer to Problem 76P
The mean free path of nitrogen molecule at sea level is
Explanation of Solution
The diameter of nitrogen molecule is
Write the expression for rms speed of atoms and molecules
Here,
Write the ideal gas equation
Here,
Rearrange
Substitute (III) in (I)
Substitute
Thus, the mean free path of nitrogen molecule is
(b)
The mean free path of nitrogen molecule at Mount Everest.
(b)
Answer to Problem 76P
The mean free path of nitrogen molecule at Mount Everest is
Explanation of Solution
The diameter of nitrogen molecule is
Substitute
Thus, the mean free path of nitrogen molecule is
(c)
The mean free path of nitrogen molecule at an altitude of
(c)
Answer to Problem 76P
The mean free path of nitrogen molecule at an altitude of
Explanation of Solution
The diameter of nitrogen molecule is
Substitute
Thus, the mean free path of nitrogen molecule is
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