Question

Gases have lower density compared to that of solids or liquids. Explain.

Answer 1

Gases are less dense than solids and liquids because their molecules are far apart in comparison to solids and liquids.

Density is given by formula, $Density=\frac{\text{mass}}{\text{volume}}$.

The greater the $\frac{\text{mass}}{\text{volume}}$ ratio, the more dense the material is.

Because the molecules of a gas are spread apart, they have the least $\frac{\text{mass}}{\text{volume}}$ ratio, and are therefore less dense.