$A, B, C$ and $D$ are four different gases with critical temperatures $304.1,154.3,405.5$ and $126.0…
$A, B, C$ and $D$ are four different gases with critical temperatures $304.1,154.3,405.5$ and $126.0 \mathrm{~K}$ respectively. While cooling the gas, which gets liquefied first?
B
A
D
C
Solution
C has highest critical temperature, i.e., 405.5K. Henc, it gets liquefied first.