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The van der Waal's equation for a gas is...

The van der Waal's equation for a gas is `(P+(a)/(V^(2)))` (V-b) = nRT where P , V, R T and n represent the pressure volume universal gas constant, absolute temperature and number of moles of a gas respectively . A and b are constants the ratio b/a will have the following dimensional formula

A

`M^(-1)L^(-2)T^(2)`

B

`M^(-1)L^(-1)T^(-1)`

C

`ML^(2)T^(2)`

D

`MLT^(-2)`

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The correct Answer is:
A
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