Solutions Question 126
Question: Which one of the following is the expression of Raoult’s law
Options:
A) $ \frac{p-p_{s}}{p}=\frac{n}{n+N} $
B) $ \frac{p_{s}-p}{p}=\frac{N}{N+n} $
C) $ \frac{p-p_{s}}{p_{s}}=\frac{N}{N-n} $
D) $ \frac{p_{s}-p}{p_{s}}=\frac{N-n}{N} $
Show Answer
Answer:
Correct Answer: A
Solution:
$ p= $ vapour pressure of pure solvent $ p_{s}= $ vapour pressure of the solution $ n= $ number of moles of the solute $ N= $ number of moles of the solvent
