A gas syringe is connected to a pressure sensor by a tube containing 5.0 cm3 of gas. The syringe initially contains 45 cm3 of gas at 100 kPa. The syringe reading is reduced to 20 cm3. The tube volume, gas mass and temperature remain constant.
Use p1V1=p2V2p_1V_1=p_2V_2p1V1=p2V2.
What is the final pressure?
225 kPa225\,\mathrm{kPa}225kPa
250 kPa250\,\mathrm{kPa}250kPa
200 kPa200\,\mathrm{kPa}200kPa
50.0 kPa50.0\,\mathrm{kPa}50.0kPa
108 exam-style questions on Edexcel GCSE Physics 14.3 Gas pressure and temperature, covering 14.3.1 Gas pressure and particle motion, 14.3.2 Temperature and pressure at constant volume, 14.3.3 Absolute zero and the kelvin scale, 14.3.4 Compressing and expanding gases, 14.3.5 Volume and pressure at constant temperature, and 14.3.6 Doing work on a gas. Each one has a worked solution and a mark scheme showing where the marks go.