Physics 0625 · IGCSE · Kinetic particle model of matter
Kinetic particle model of matter — practice question
Fig. 6.1 shows a flask containing hot water.
(a)[3]
Describe the arrangement of the molecules and how they move in the liquid water and in the water vapour.
(b)[3]
Describe, in terms of molecules, how water in the flask turns into water vapour in the air. State the name of the process.
(c)[3]
Calculate the pressure exerted by the flask on the table.
Worked solution & mark scheme
This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: “molecules are closer together in water OR more widely spaced in water vapour” …