Question

The Vander Waal's constant 'a' for the gases $100g$ and $47^{o}C$are 1.3, 1.390, 4.170 and 2.253 $\underset{\text{4 litre}}{NH_{3}} + \underset{\text{1.5 litre}}{HCl} \rightarrow \underset{(\text{solid})}{NH_{4}Cl}$ respectively. The gas which can be most easily liquefied is

• A. $4dm^{3}$
• B. $2dm^{3}$
• C. $3dm^{3}$
• D. $4dm^{3}$

Answer 1

Answer: (C)

$3dm^{3}$

Answer 2

Value of constant a is greater than other for $1dm^{3} = 1L$ that’s why $1L = 10^{3}m^{3}$can be most easily liquefied.