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In the Van der Waals equation (P + (a)/(...

In the Van der Waals equation `(P + (a)/(V^(2)))(V-b)` = constant, the unit of a is

A

dy ne `xx cm^5`

B

dy ne `xx cm^4`

C

dy ne `xx cm^(-3)`

D

dy ne `xx cm^(-2)`

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The correct Answer is:
B
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