A student compresses the gas in a sealed syringe very quickly. Why can the student not use pressure×volume=constant\text{pressure} \times \text{volume} = \text{constant}pressure×volume=constant to work out the new pressure of the gas?
The mass of the gas inside the syringe is not fixed.
The volume of the gas inside the syringe is too small.
The temperature of the gas does not stay constant.
The pressure of the gas is too large to be measured.
40 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.