Question detail

How does compressing a gas quickly affect its temperature ? P43-006 Increasing the pressure of a gas (physics only) (HT only) checkpoint

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. The temperature increases ? P43-006 gas pressure collision reasoning
  2. B. P43-006 trap: this swaps gas pressure collision reasoning for a neighbouring particle-model idea.
  3. C. P43-006 trap: this omits work done, particle kinetic energy, HT only from the explanation.
  4. D. P43-006 trap: this answer belongs outside Increasing the pressure of a gas (physics only) (HT only).

Answer

The correct answer is The temperature increases ? P43-006 gas pressure collision reasoning.

Explanation

Cause lens: Name the cause, then state the effect on particles, pressure, density, or energy. This question asks: How does compressing a gas quickly affect its temperature ?. The correct response is The temperature increases ? P43-006 gas pressure collision reasoning, 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) Link work done on gas particles to increased particle kinetic energy. 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 616 is distinct because it uses this exact question context and the cause lens rather than a generic particle-model sentence.

Common mistake

Linking Work Done and Kinetic Energy

Students often confuse work done on gas particles with the total energy of the gas, failing to recognize that work done specifically increases the kinetic energy of the particles.

To fix this, students should focus on understanding that work done on gas particles translates directly to an increase in their kinetic energy, rather than affecting the total energy of the gas.

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How does compressing a gas quickly affect its temperature ? | AQA Physics | ExamCompanion