(a)
Interpretation:
Whether the diffusion of ammonia through an atmosphere of helium is faster or slower than through air in Example 19.9 is to be stated.
Concept introduction:
The mutual diffusion constant involves the three mean free paths, that is, between like gas particles and between the different gas particles. The mutual diffusion constant is given by,
Where,
•
•
•
•
•
•
The mutual diffusion constant does not depend on the mole fractions of the involved gases.
(b)
Interpretation:
Whether the diffusion of ammonia through an atmosphere of
Concept introduction:
The mutual diffusion constant involves the three mean free paths, that is, between like gas particles and between the different gas particles. The mutual diffusion constant is given by,
Where,
•
•
•
•
•
•
The mutual diffusion constant does not depend on the mole fractions of the involved gases.

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Chapter 19 Solutions
Bundle: Physical Chemistry, 2nd + Student Solutions Manual
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