Ncert Exercises & Solutions

5.20 What would be the SI unit for the quantity pV 2T 2/n ?

The SI unit for pressure, p is

N m^{- 2}

The SI unit for volume, V is

m^{3}

The SI unit for temperature, T is K.

The SI unit for the number of moles, n is mol.

Therfore, the SI unit for quatity

\frac{p V^{2} T^{2}}{n} i s g i v e n b y,

= \frac{(N m^{- 2}) (m^{3}) {(K)}^{2}}{m o l}

= N m^{4} K^{2} m o l^{- 1}