Physics 0625 · IGCSE · Kinetic particle model of matter

Kinetic particle model of matter — practice question

Fig. 3.1 illustrates a gas inside a cylinder that is sealed by a piston.
(a)[3]

Describe, using the molecules' momentum, how pressure is produced on the cylinder walls.

(b)[3]

Calculate the pressure before the gas was compressed.

Worked solution & mark scheme

This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Gas molecules strike the walls” …

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