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Derive the units of the vanderwaal's constants. |
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Answer» Solution :Units for VANDERWAAL's constant : The dimensions of the vanderwaal's constant a and b depend UPON the units of P and V resetively. `a=("Pressure"("Volume")^(2))/("mole"^(2))` `a=atm * dm^(6)*"MOL"^(-2) (1 "litre"= 1 dm^(3))` If volume is EXPRESSED in `dm^(3)`. then b is expressed as, `(Vol)/(n)=(dm^(3))/("mol")` `(V)/(n)= dm^(3)"mol"^(-1)` unit of `b=dm^(3)"mol"^(-1)` |
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