a' and 'b' are van der Waals constants for gases. Chlorine is more easily liquefied than ethane because

a' and 'b' are van der Waals constants for gases. Chlorine is more eas

1.	a' and 'b' are van der Waals constants for gases. Chlorine is more easily liquefied than ethane because
Answer» a and b for `Cl_(2) lt a` and b for `C_(2)H_(6)` a for `Cl_(2) lt a ` for `C_(2)H_(6)` but b for `Cl_(2) gt b` for `C_(2)H_(6)` a for `Cl_(2) gt a` for `C_(2)H_(6)` but b for `Cl_(2) lt b` for `C_(2)H_(6)` a and b for `Cl_(2) gt a` and b for `C_(2)H_(6)` Solution :a' is directly related to the intermolecular forces of attraction and hence to the EASE of LIQUEFACTION of the gas and 'b' is a MEASURE of the size of the molecules and hence inversely related to the ease of liquefaction. As `Cl_(2)` is more easily liquefied than `C_(2)H_(6)`, a for `Cl_(2) gt a` for`C_(2)H_(6)` but b for `Cl_(2) lt b` for `C_(6)H_(6)`.