On a graph of product volume against time, what does a steeper gradient show?
A larger final volume of gas
A faster reaction rate
A lower reaction temperature
A reversible reaction
122 exam-style questions on Edexcel GCSE Chemistry 8.1 Rates of reaction, covering 8.1.1 Measuring and interpreting rates of reaction, 8.1.2 Collision theory and the factors affecting rate, and 8.1.3 Catalysts and enzymes. Each one has a worked solution and a mark scheme showing where the marks go.