Nanoparticles have a massive surface area to volume ratio, making them highly useful in catalyst design.
A spherical nanoparticle has a diameter of 40 nm40\text{ nm}40 nm.
What is 40 nm40\text{ nm}40 nm in metres?
4.0×10−7 m4.0 \times 10^{-7}\text{ m}4.0×10−7 m
4.0×10−8 m4.0 \times 10^{-8}\text{ m}4.0×10−8 m
4.0×10−9 m4.0 \times 10^{-9}\text{ m}4.0×10−9 m
4.0×10−10 m4.0 \times 10^{-10}\text{ m}4.0×10−10 m
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.
