A sealed, rigid glass container contains a fixed mass of gas. During a laboratory experiment, the container is heated, causing the temperature of the gas to rise. As a result, the pressure inside the container increases.
Why does the temperature rise cause the pressure to increase?
The gas molecules move faster, colliding with the container walls more frequently and with greater force.
The gas molecules increase in size, taking up more space inside the container.
The volume of the container expands significantly to accommodate the heat energy.
The number of gas molecules inside the container increases as they gain energy.
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.