1.

The units of the van der Waals constant `a` areA. `mol L^(-1)`B. `atm L^(-2) mol^(2)`C. `atm L^(2) mol^(-2)`D. `L mol^(-1)`

Answer» Correct Answer - C
The correction term for pressure has the units of atmosphere. Thus,
`(an^(2))/(V^(2)) rArr atm`
or `a rArr (atm V^(2))/(n^(2)) rArr (atm L^(2))/(mol^(2))`
The correction term for volume has the units of liter. Thus, `nb rArr Liter`
`b rArr ("Liter")/(n) rArr ("Liter")/("mole")`


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