Question detail

How does increasing the temperature of a gas affect the average kinetic energy of its particles (Pressure in gases (physics only))

Try the question, check the answer, then read the explanation to understand the curriculum point.

At a glance

MCQ

Type

practice

Style

Topic

Particle model and pressure

Question

  1. A. It decreases the average kinetic energy
  2. B. It has no effect on the average kinetic energy
  3. C. It increases the average kinetic energy
  4. D. It causes the particles to stop moving

Answer

The correct answer is It increases the average kinetic energy.

Explanation

Method lens: First identify the measured quantity, then match the equation or particle idea to the command word. This question asks: How does increasing the temperature of a gas affect the average kinetic energy of its particles (Pressure in gases (physics only)). The correct response is It increases the average kinetic energy, because density links mass and volume, so the answer must preserve which quantity is being calculated. In Pressure in gases (physics only), the marking point should connect directly to (Physics only) Interpret pressure-volume data for a fixed mass of gas at constant temperature. 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 572 is distinct because it uses this exact question context and the method lens rather than a generic particle-model sentence.

Common mistake

Misinterpreting Pressure-Volume Relationship

Students often confuse the relationship between pressure and volume, thinking that increasing volume always leads to an increase in pressure.

Remember that for a fixed mass of gas at constant temperature, increasing the volume decreases the pressure, as described by the equation P x V = constant.

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How does increasing the temperature of a gas affect the average | AQA Physics | ExamCompanion