Question
OCR J258/01 — Foundation/Higher
Bromine gas is released at one end of a sealed glass tube. After 5 minutes, the brown bromine colour extends 8 cm along the tube.
(a) Define diffusion. (2 marks)
(b) Suggest two changes to the experiment that would cause the bromine to travel further in 5 minutes. (2 marks)
(c) A student claims: "Diffusion only happens in gases." Evaluate this claim. (2 marks)
6 marks · take your time before peeking.
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Generated by TopMyGrade AI · cross-check official sources before relying on the mark-scheme phrasing.