A gas has a pressure of 150,000 Pa and occupies a volume of 3.0 m³. If the volume is increased to 6.0 m³ at constant temperature, what is the new pressure (Pressure in gases (physics only))

The correct answer is 75000 Pa.

Method lens: First identify the measured quantity, then match the equation or particle idea to the command word. This question asks: A gas has a pressure of 150,000 Pa and occupies a volume of 3.0 m³. If the volume is increased to 6.0 m³ at constant temperature, what is the new pressure (Pressure in gases (physics only)). The correct response is 75000 Pa, 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 pressure when volume 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 548 is distinct because it uses this exact question context and the method lens rather than a generic particle-model sentence.