Solutions Question 182
Question: The temperature at which 10% aqueous solution (w/v) of glucose will exhibit the osmotic pressure of 14 bar is -
Options:
A) $ 307.3{}^\circ C $
B) 307.3 K
C) 34 K
D) $ -34{}^\circ C $
Show Answer
Answer:
Correct Answer: B
Solution:
$ \pi =\frac{nRT}{V} $ or $ T=\frac{\pi V}{nR} $ 10% (w/v) aqueous solution of glucose means 10 g glucose is present in 100 mL of $ H_2O $
$ =\frac{14\times 100\times {10^{-3}}\times 180}{0.082\times 10}=307.3K $
BETA
