The binary diffusivity in gases and liquids vary respectively as_________________?
Correct answer: A. T3/2 and T
- A. T3/2 and T
- B. T and T3/2
- C. √T and T3/2
- D. T3/2 and √T
Explanation
Gas-phase binary diffusivity increases approximately as T raised to the 3/2 power at fixed pressure, while liquid diffusivity is commonly approximated as increasing with T when viscosity effects are simplified. Hence the stated trend is T3/2 and T.
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