A sealed gas syringe contains a mixture of nitrogen dioxide (NO2\text{NO}_2NO2, a brown gas) and dinitrogen tetroxide (N2O4\text{N}_2\text{O}_4N2O4, a colourless gas). The system is allowed to reach dynamic equilibrium.
Explain why the intensity of the brown colour in the syringe remains constant once equilibrium has been established.
Practise Edexcel GCSE Chemistry Dynamic equilibria with exam-style questions for Foundation and Higher tier. 30 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
