Question

The equation $(P+\frac{a}{v^2})$ (v-b) = constant. If P and V are the pressure and volume, the C.G.S units of a is

• A. Dyne X cm⁵
• B. Dyne X cm⁴
• C. Dyne / cm³
• D. Dyne / cm²

Answer 1

The correct option is B Dyne X cm⁴

Units of 'a' and ${}^{\prime }P{V}^2$ are same from the equation.

Units of P = $Dyne/c{m}^2.$
Units of $V^2=c{m}^6.$
Units of a = Units of $P{V}^2$ = Dyne $\times c{m}^4$