Question detail
What is the effect of increasing the pressure of a gas at constant volume (Increasing the pressure of a gas (physics only) (HT only)) (Increasing the pressure of a gas (physics only) (HT only); definition focus: (Physics only) (HT only) Link work done on gas particles to increased particle kinetic energy) (Increasing the pressure of a gas (physics only) (HT only); definition focus: (Physics only) (HT only) Link work done on gas particles to increased particle kinetic energy)
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
- A. The temperature increases
- B. This confuses work done with a different particle-model idea in Particle model and pressure.
- C. This gives a vague particle statement without answering the definition focus.
- D. This reverses the cause and effect for Increasing the pressure of a gas (physics only) (HT only).
Answer
The correct answer is The temperature increases.
Explanation
Practical lens: Link apparatus, readings, and uncertainty to the exact measurement named in the objective. This question asks: What is the effect of increasing the pressure of a gas at constant volume (Increasing the pressure of a gas (physics only) (HT only)) (Increasing the pressure of a gas (physics only) (HT only); definition focus: (Physics only) (HT only) Link work done on gas particles to increased particle kinetic energy) (Increasing the pressure of a gas (physics only) (HT only); definition focus: (Physics only) (HT only) Link work done on gas particles to increased particle kinetic energy). The correct response is The temperature increases, 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 614 is distinct because it uses this exact question context and the practical 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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