What effect does changing the arrangement of particles have on their potential energy (Internal energy)

The correct answer is It increases potential energy.

Application lens: Apply the rule to the specific sample or situation instead of reciting a broad fact. This question asks: What effect does changing the arrangement of particles have on their potential energy (Internal energy). The correct response is It increases potential energy, because internal energy combines particle kinetic and potential energy. In Internal energy, the marking point should connect directly to define internal energy as the total kinetic energy and potential energy of all particles in a system. 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 Internal energy and energy transfers, 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 211 is distinct because it uses this exact question context and the application lens rather than a generic particle-model sentence.