What happens to the temperature of a substance during a change of state (Changes of state and specific latent heat)

The correct answer is It remains constant..

Boundary lens: Keep this separate from nearby specification points that use similar words but test a different idea. This question asks: What happens to the temperature of a substance during a change of state (Changes of state and specific latent heat). The correct response is It remains constant., because density links mass and volume, so the answer must preserve which quantity is being calculated. In Changes of state and specific latent heat, the marking point should connect directly to recall and apply the equation energy for a change of state = mass x specific latent heat. 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 382 is distinct because it uses this exact question context and the boundary lens rather than a generic particle-model sentence.