1.

The units of constant 'a' in van der Waals equation is :

Answer»

`dm^(6)`atm `mol^(-2)`
`dm^(3)` atm `mol^(-1)`
dm atm. `mol^(-1)`
atm `mol^(-1)`

SOLUTION :UNITS of .a. = `L^(2)` atm, `mol^(-2)`
`1L = 1 dm^(3)`
Hence units of .a. = `dm^(6)` atm `mol^(-2)`


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