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States Of Matter
'a' and 'b' are van der Waals constants for gases. Chlorine is more easily liquefied than ethane because :
a and b for Cl2 > a and b for C2H6
a and b for Cl2 < a and b for C2H6
a and Cl2 < a for C2H6 but b for Cl2 > b for C2H6
a for Cl2 > a for C2H6 but b for Cl2 < b for C2H6
D.
a for Cl2 > a for C2H6 but b for Cl2 < b for C2H6
Vander Waals, constant a is due to force of attraction and b due to the infinite size of molecules. Thus, greater the value a and smaller the value b, larger the liquefaction.
a | b | |
Cl2 | 6.579 L2 bar mol-2 | 0.05622 L bar mol-2 |
C2H5 | 5.562 L2 bar mol-2 | 0.06380 L mol-1 |
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