The KMT and the Properties of Gases Slide 12 of 32 The KMT and the Properties of Gases 1. Travel quite a ways before a collision occurs. Density very low, because a given number of particles spreads out to such a high volume. Gas molecules are a long ways apart. Therefore, we can compress them into a much smaller space.
Gases can mix, because the particles are a long ways apart and easily go past one another.