Physics

Problem

Number of molecules in a volume of

4 \text{ cm}^3

of a perfect monoatomic gas at temperature

T

and pressure of

2 \text{ cm}

of mercury is close to? (Given mean kinetic energy of a molecule at

T

4 \times 10^{-14} \text{ erg}

g = 980 \text{ cm/s}^2

, density of mercury =

13.6 \text{ g/cm}^3

) a.

4.0 \times 10^{18}

4.0 \times 10^{16}

5.8 \times 10^{16}

5.8 \times 10^{18}