In Vander Wall's equation `(P +(a)/(V^2))(V - b) = RT` What are the dimensions of a and b ? Here, P is pressure, V is volume, T is temperature and R is gas constant.

Options

A. `ML^(4)T^(-2)`
B. `ML^(5)T^(-2)`
C. `ML^(3)T^(-2)`
D. `ML^(2)T^(-2)`

Answer

B

Explanation

`[PV]=[(a)/(b)]`
`ML^(2)T^(-2)=([a])/(L^(3))rArr[a]=ML^(5)T^(-2)`