A sealed storage tank contains a gas. The gas exerts a pressure of 32 000 N/m232\,000\text{ N/m}^232000 N/m2 on a flat circular access hatch. The surface area of the hatch is 0.05 m20.05\text{ m}^20.05 m2.
Calculate the force exerted by the gas on the hatch.
The gas inside the tank cools down.
State and explain the effect of this temperature decrease on the pressure of the gas inside the tank. Use your ideas about gas molecules.
126 exam-style questions on CIE IGCSE Physics 2.1.3a The absolute scale of temperature. Each one has a worked solution and a mark scheme showing where the marks go.