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Find out the units and dimensions of the constants a and b in the vander waal.s equation `( P + ( a )/(V ^(2)))(V -b) =RT.`

A

`[ML^5T^(-2)]`

B

`[ML^(-1)T^(-2)]`

C

`[M^0L^(3)T^0]`

D

`[M^0 L^6 T^0]`

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