In a vehicle's exhaust system, a catalytic converter containing a platinum-rhodium alloy is used to treat harmful emissions.
State the effect of this catalytic alloy on the rate of the reaction that converts nitrogen oxides into nitrogen gas.
127 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.