A student investigates the relationship between the pressure and volume of a fixed mass of gas sealed in a syringe connected to a pressure sensor. The relationship is given by the equation: $\text{pressure} \times \text{volume} = \text{constant}$
State the physical quantity, other than mass, that must be kept constant for this relationship to hold.
The initial volume of the gas in the syringe is 15textcm315\\text{ cm}^315textcm3 and its initial pressure is 120,000textPa120\\,000\\text{ Pa}120,000textPa. Calculate the value of the constant in \text{Pa cm}^3.
The plunger is pushed slowly inwards so that the volume decreases to 10textcm310\\text{ cm}^310textcm3. Calculate the new pressure of the gas.
Choose whether there is more space, less space, or the same space between the gas particles as the volume decreases.
Practise AQA GCSE Physics Particle model and pressure with exam-style questions for Foundation and Higher tier. 12 questions covering Particle motion in gases, Pressure in gases (physics only), and Increasing the pressure of a gas (physics only) (HT only), matched to the AQA GCSE Physics (8463) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.