What occurs when gas particles collide with each other?

The correct answer is They bounce off each other without losing energy..

Application lens: Apply the rule to the specific sample or situation instead of reciting a broad fact. This question asks: What occurs when gas particles collide with each other. The correct response is They bounce off each other without losing energy., because gas pressure comes from particle collisions with container walls. In Particle motion in gases, the marking point should connect directly to describe gas particles as moving in constant random motion. 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 Particle model and pressure, 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 451 is distinct because it uses this exact question context and the application lens rather than a generic particle-model sentence.