(a)[2]
Explain why this happens.
(b(i))[1]
State what happens to the motion of the helium particles as the temperature increases.
(b(ii))[3]
Explain, in terms of helium particles, how the helium pressure remains constant.
Physics 0625 · IGCSE · Kinetic particle model of matter
Kinetic particle model of matter — practice question
A rubber balloon containing helium is sealed so that no helium can get out. It is placed just under the ceiling of a room. The heaters are turned on and the air temperature in the room rises.
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