Question detail
When the volume of a gas is halved at constant temperature, what happens to the frequency of particle collisions with the container walls (Pressure in gases (physics only)) (Pressure in gases (physics only); definition focus: (Physics only) Apply MS 3b, MS 3c and MS 4a skills when calculating or interpreting pressure-volume relationships) (Pressure in gases (physics only); definition focus: (Physics only) Apply MS 3b, MS 3c and MS 4a skills when calculating or interpreting pressure-volume relationships)
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 frequency increases
- B. This confuses pressure 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 Pressure in gases (physics only).
Answer
The correct answer is The frequency increases.
Explanation
Particle lens: Describe arrangement, motion, spacing, collisions, or energy changes only when they are relevant here. This question asks: When the volume of a gas is halved at constant temperature, what happens to the frequency of particle collisions with the container walls (Pressure in gases (physics only)) (Pressure in gases (physics only); definition focus: (Physics only) Apply MS 3b, MS 3c and MS 4a skills when calculating or interpreting pressure-volume relationships) (Pressure in gases (physics only); definition focus: (Physics only) Apply MS 3b, MS 3c and MS 4a skills when calculating or interpreting pressure-volume relationships). The correct response is The frequency increases, 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) Apply MS 3b, MS 3c and MS 4a skills when calculating or interpreting pressure-volume relationships. 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 576 is distinct because it uses this exact question context and the particle lens rather than a generic particle-model sentence.
Common mistake
Misunderstanding Pressure-Volume Relationship
Students often confuse the relationship between pressure and volume, thinking that increasing the volume always increases the pressure.
Remember that for a fixed mass of gas at constant temperature, increasing the volume decreases the pressure, while decreasing the volume increases the pressure.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.