Gases posses charcteristic critical temperature which depends upo the magnitude of intermolecular forces between the particles. Following are the critical temperatures of some gases.
GasesH2HeO2N2Critical temperature in Kelvin33.25.3154.3126
From the above data what would be the order of liquefaction of these gases? Start writing the order from the gas liquefying first
(a) H2,He,O2,N2 (b) He,O2,H2,N2
(c) N2,O2,He,H2, (d) O2,N2,H2,He
Gases posses charcteristic critical temperature which depends upo the magnitude of intermolecular forces between the particles. Following are the critical temperatures of some gases.
GasesH2HeO2N2Critical temperature in Kelvin33.25.3154.3126
From the above data what would be the order of liquefaction of these gases? Start writing the order from the gas liquefying first
(a) H2,He,O2,N2 (b) He,O2,H2,N2
(c) N2,O2,He,H2, (d) O2,N2,H2,He
Answer: (d) O2,N2,H2,He
Higher the critical temperature more easily is the gas liquefied. Hence, order of liquefaction starting with the gas liquefying first will be O2,N2,H2,He.
Note the Critical temperature of a gas may be defined as that temperature above which it cannot be liquified howsoever high pressure may be applied on the gas.
Answer: (d) O2,N2,H2,He
Higher the critical temperature more easily is the gas liquefied. Hence, order of liquefaction starting with the gas liquefying first will be O2,N2,H2,He.
Note the Critical temperature of a gas may be defined as that temperature above which it cannot be liquified howsoever high pressure may be applied on the gas.
