Gaseous diffusion co-efficient increases with increase in the_____________________?
Correct answer: B. Temperature
- A. Pressure
- B. Temperature
- C. Both A. & B.
- D. Neither A. nor B.
Explanation
Gas diffusivity generally increases with temperature because molecular motion becomes faster, and decreases with pressure because collisions become more frequent. Thus temperature gives the stated increase, while pressure would give the opposite effect.
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