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2.4 Bulk and surface properties of matter including nanoparticles

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Question 14

A chemist compares two batches of a powdered solid. The particles are modelled as cubes.

Particles in batch P have sides of length 80 nm80\ \text{nm}80 nm.

Particles in batch Q have sides of length 640 nm640\ \text{nm}640 nm.

How does the surface area to volume ratio of a particle from batch Q compare with that of a particle from batch P?

[1]
A

It is the same for both particles

B

It is lower by a factor of 64

C

It is lower by a factor of 8

D

It is lower by a factor of 512

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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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