Chemistry

Problem

The density of the vapours of a substance at 1 atm and

500 \text{ K}

0.36 \text{ kg m}^{-3}

. If molar mass of gas is

18 \text{ g mol}^{-1}

, the molar volume of gas is

5 \times 10^a \text{ m}^3

. What is the value of

a