NEET-XII-Chemistry
Previous Year Paper year:2018
- #71Given van der Waals constant for ``\ce NH3, H2`` and ``CO_2``
are respectively 4.17, 0.244, 1.36 and 3.59, which
one of the following gases is most easily liquefied?
(1) ``\ce NH3``
(2) ``H_2 ``
(3)`` O_2 ``
(4)`` CO_2``digAnsr: 1Ans : (1)
Sol. Critical temperature  vanderwaal constant(a)
maximum "a" &implies; gas with maximum TC &implies; easiest
liquification = NH3