Which statement best describes the effect of doing work on a gas?

The correct answer is It transfers energy to the gas.

Particle lens: Describe arrangement, motion, spacing, collisions, or energy changes only when they are relevant here. This question asks: Which statement best describes the effect of doing work on a gas. The correct response is It transfers energy to the gas, because gas pressure comes from particle collisions with container walls. In Increasing the pressure of a gas (physics only) (HT only), the marking point should connect directly to (Physics only) (HT only) Explain that doing work on a gas transfers energy to the gas. 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 588 is distinct because it uses this exact question context and the particle lens rather than a generic particle-model sentence.