A chemist monitors the rate of the thermal decomposition of gaseous dinitrogen pentoxide, N2O5(g)\text{N}_2\text{O}_5\text{(g)}N2O5(g), in a sealed vessel of fixed volume at a constant temperature.
State and explain, using collision theory, how the rate of this reaction changes as the reaction proceeds over time.
Practise Edexcel GCSE Chemistry Rates of reaction with exam-style questions for Foundation and Higher tier. 166 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.