A computer model compares two collections of cubic nanoparticles. The particles are separate, so all their faces are exposed.
| Collection | Volume of one nanoparticle in nm3\text{nm}^3nm3 | Number of nanoparticles |
|---|---|---|
| P | 8 | 125 |
| Q | 125 | 8 |
Calculate the ratio
total surface area of collection P : total surface area of collection Q
Give the ratio in its simplest form.
104 exam-style questions on AQA GCSE Chemistry 2.4 Bulk and surface properties of matter including nanoparticles, covering 2.4.1 Sizes of particles and their properties and 2.4.2 Uses of nanoparticles. Each one has a worked solution and a mark scheme showing where the marks go.