Activity co-efficient is a measure of the
A. Departure from ideal solution behaviour
B. Departure of gas phase from idea] gas law
C. Vapour pressure of liquid
D. None of these
Answer: Option A
Solution (By Examveda Team)
Activity coefficient \[{{\gamma }_{i}}=\frac{{{\overset\frown{{{f}_{l}}}}^{real}}}{\overset\frown{{{f}_{l}}^{ld}}}\]For an ideal solution activity coefficient $$= 1$$
And for real solution it tells about the departure from ideal solution by real solution like compressibility factor in case of gases.
This Question Belongs to Chemical Engineering >> Chemical Engineering Thermodynamics
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