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.
321 exam-style questions on CIE IGCSE Physics 2.1 Kinetic particle model of matter, covering 2.1.1 States of matter and changes of state, 2.1.2a Particle structure and motion in solids, liquids and gases, 2.1.2b Gas pressure and particle collisions, 2.1.2c Brownian motion, 2.1.3a The absolute scale of temperature, and 2.1.3b Pressure, volume and temperature of a gas. Each one has a worked solution and a mark scheme showing where the marks go.