Explain how increasing the internal energy of a gas can lead to an increase in its temperature.

Increasing the internal energy of a gas results in an increase in the average kinetic energy of its particles. As the kinetic energy increases, the particles move faster, which raises the temperature of the gas.

Particle lens: Describe arrangement, motion, spacing, collisions, or energy changes only when they are relevant here. This question asks: Explain how increasing the internal energy of a gas can lead to an increase in its temperature. The correct response is Increasing the internal energy of a gas results in an increase in the average kinetic energy of its particles. As the kinetic energy increases, the particles move faster, which raises the temperature of 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 increasing internal energy can increase the temperature of a 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 600 is distinct because it uses this exact question context and the particle lens rather than a generic particle-model sentence.