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2.4 Bulk and surface properties of matter including nanoparticles

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Question 15

A research team makes two samples of cubic particles from the same material.

The total surface area of each particle in sample A is 600 nm2600\ \text{nm}^2600 nm2.

The side length of each particle in sample B is twice the side length of each particle in sample A.

a.

Calculate the surface area to volume ratio of one particle in sample B.

Give your answer in nm−1\text{nm}^{-1}nm−1.

[3]
b.

Explain which sample exposes more surface area for the same total volume of material.

[2]
Markscheme

2.4 Bulk and surface properties of matter including nanoparticles Questions

  1. GCSE
  2. /Chemistry
  3. /2.4 Bulk and surface properties of matter including nanoparticles

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.

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