Question detail
A gas is contained in a cylinder with a volume of 5.0 m³ at a pressure of 80,000 Pa. If the volume is increased to 10.0 m³, what will be the new pressure at constant temperature (Pressure in gases (physics only)) ? P43-034 Pressure in gases (physics 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
- A. 40,000 Pa ? P43-034 density measurement and calculation
- B. P43-034 trap: this swaps density measurement and calculation for a neighbouring particle-model idea.
- C. P43-034 trap: this omits pressure, volume, constant temperature from the explanation.
- D. P43-034 trap: this answer belongs outside Pressure in gases (physics only).
Answer
The correct answer is 40,000 Pa ? P43-034 density measurement and calculation.
Explanation
Practical lens: Link apparatus, readings, and uncertainty to the exact measurement named in the objective. This question asks: A gas is contained in a cylinder with a volume of 5.0 m³ at a pressure of 80,000 Pa. If the volume is increased to 10.0 m³, what will be the new pressure at constant temperature (Pressure in gases (physics only)) ?. The correct response is 40,000 Pa ? P43-034 density measurement and calculation, 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) Calculate volume when pressure changes 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 554 is distinct because it uses this exact question context and the practical lens rather than a generic particle-model sentence.
Common mistake
Confusing Pressure and Volume Relationships
Students often confuse the relationship between pressure and volume, thinking that increasing pressure always leads to an increase in volume.
Remember that for a fixed mass of gas at constant temperature, increasing the pressure actually decreases the volume, as described by Boyle's Law.
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