What happens to particles during evaporation?

The correct answer is Particles gain energy and escape from the surface of the liquid..

Boundary lens: Keep this separate from nearby specification points that use similar words but test a different idea. This question asks: What happens to particles during evaporation. The correct response is Particles gain energy and escape from the surface of the liquid., because changes of state are explained by particle energy and arrangement. In Changes of state, the marking point should connect directly to explain evaporation as particles escaping from the surface of a liquid. 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 142 is distinct because it uses this exact question context and the boundary lens rather than a generic particle-model sentence.