The value of van der waals constant ‘a’ for gases \[O_{2},N_{2},NH_{3} andCH_{4}\] are 1.360, 1.390, 4.170 and \[2.253 liter^{2}\] atm mol–2 respectively. The gas which can most easily beliquefied is
a) \[O_{2}\]
b) \[N_{2}\]
c) \[NH_{3}\]
d) \[CH_{4}\]
Answer: c
Explanation: The higher the value of ‘a’, more the value of Tc
, easy is
the liquefaction
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