CH-1545
Diffusion
Chemistry · Secondary 4 · Medium · Diffusion
A gas jar of chlorine gas is placed above a gas jar of air, separated by a cover plate. When the cover plate is removed and the jars are left undisturbed, after some time the green colour of chlorine is evenly spread in both jars.
Which statement best explains this observation?
Which statement best explains this observation?
- Equal volumes of air and chlorine contain equal numbers of molecules.
- Air and chlorine molecules diffuse at the same rate.
- Air and chlorine molecules move randomly in all directions.
- Air and chlorine gases have equal densities.
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