A researcher investigates how the pressure of a fixed mass of gas varies with its volume at a constant temperature. They use a sealed graduated cylinder fitted with a gas-tight movable piston and a digital pressure sensor.
Table 1 shows the data collected during the experiment.
Volume in cm3Pressure in kPa406030802012010240 \begin{array}{|c|c|} \hline \text{Volume in } \text{cm}^3 & \text{Pressure in } \text{kPa} \\ \hline 40 & 60 \\ \hline 30 & 80 \\ \hline 20 & 120 \\ \hline 10 & 240 \\ \hline \end{array} Volume in cm340302010Pressure in kPa6080120240Describe a method the researcher could use to obtain the data shown in Table 1.
Describe what happens to the pressure of the gas when the volume of the gas is reduced to one-quarter of its original value (for example, from 40 cm3 to 10 cm3).
The temperature of the gas was kept constant during the experiment. Which two of the following properties of the gas particles would change if the temperature of the gas decreased?
8 exam-style questions on AQA GCSE Physics 3.3 Particle model and pressure, covering 3.3.1 Particle motion in gases, 3.3.2 Pressure in gases, and 3.3.3 Increasing the pressure of a gas (HT only). Each one has a worked solution and a mark scheme showing where the marks go.