Question detail

What effect does temperature have on the average kinetic energy of gas 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. Temperature has no effect
  2. B. Higher temperature decreases kinetic energy
  3. C. Higher temperature increases kinetic energy
  4. D. Kinetic energy is constant regardless of temperature

Answer

The correct answer is Higher temperature increases kinetic energy.

Explanation

Boundary lens: Keep this separate from nearby specification points that use similar words but test a different idea. This question asks: What effect does temperature have on the average kinetic energy of gas particles (Pressure in gases (physics only)). The correct response is Higher temperature increases 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) Explain how changing the volume of a fixed mass of gas changes the frequency of particle collisions with container walls. 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 514 is distinct because it uses this exact question context and the boundary lens rather than a generic particle-model sentence.

Common mistake

Understanding Volume Changes

Students often confuse the relationship between volume changes and collision frequency, thinking that increasing volume decreases pressure without considering the effect on collision frequency.

To fix this, remember that increasing the volume of a gas decreases the frequency of collisions with the container walls, which in turn reduces pressure. Visualize how gas particles spread out in a larger space, leading to fewer collisions.

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