(a)[2]
Describe two ways in which evaporation and boiling of the water in the cooker differ.
(b)[4]
Explain this rise in pressure in terms of particles.
Physics 0625 · IGCSE · Kinetic particle model of matter
Kinetic particle model of matter — practice question
Fig. 4.1 shows a pressure cooker resting on an electric heating element. The cooker is fitted with a tight-fitting lid. The diagram labels are: tight-fitting lid, water, electric heating element.
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This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Boiling occurs at one particular temperature OR evaporation takes place over a range of temperatures” …
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