Modern exhaust systems in hybrid vehicles use palladium to catalyse the oxidation of toxic carbon monoxide to carbon dioxide.
Explain, in terms of particle dimensions and surface area, why a 5.0 g sample of palladium is vastly more effective as a catalyst when structured as nanoparticles (with diameters between 1 and 100 nm100\text{ nm}100 nm) rather than as a 5.0 g sample of a coarse powder.
Practise Edexcel GCSE Chemistry Bulk and surface properties of matter including nanoparticles with exam-style questions for Foundation and Higher tier. 63 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.
