# Intermolecular distances!

Classical Mechanics Level pending

Let $$d_{L}$$ and $$d_{V}$$ represent the average distances between molecules in the liquid phase and in the vapour phase, respectively. Assume that both phases are at 100°C and atmospheric pressure and the vapour behaves like an ideal gas. Calculate the ratio $$\dfrac{d_{V}}{d_{L}}$$.

Use the following data:

Density is waste in liquid phase: $$10^3$$ kg per cubic metre

Molar mass of water: $$1.8 \times 10^{-2}$$ kg per mole

Atmospheric pressure: $$10^5$$ newton per square metre

Gas constant: 8.3 joule per mole kelvin

Avogadro's Number: $$6 \times 10^{23}$$

×