Homework Answers
Physical significance of 'a' and 'b' :
'a' is the measure of magnitude of intermolecular attractive forces within tha gas and is independent of temperature and pressure. It alters the pressure in the ideal gas equation. It indicates the strength of intermolecular attractive force. It's unit is L2atm/mol2
b indicates the volume occupied by the molecule and if it is multiplied by n that is nb indicates the total volume occupied by the molecules. b has unit of L/mol.
The values of a and b must be experimentally determined.
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