Which statement is true about the particle arrangement in gases?

The correct answer is Gases are far apart and move freely in all directions.

Particle lens: Describe arrangement, motion, spacing, collisions, or energy changes only when they are relevant here. This question asks: Which statement is true about the particle arrangement in gases. The correct response is Gases are far apart and move freely in all directions, because changes of state are explained by particle energy and arrangement. In Changes of state, the marking point should connect directly to explain freezing using decreased particle energy and changed particle arrangement. If the question includes values, the working must keep the appropriate unit and operation; if it is an explanation, it must name the relevant particle behaviour or energy change. This item belongs to Changes of state and the particle model, so avoid answers that switch to a different quantity, confuse heat with temperature, or describe gas pressure without collisions when collisions are the reason. Checkpoint 132 is distinct because it uses this exact question context and the particle lens rather than a generic particle-model sentence.