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2.3 Properties of materials

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Question 18
F

A nanoparticle is a cube with sides of length 2 nm.

Use the equations:

surface area of a cube = 6 × (side length)2^{2}2

volume of a cube = (side length)3^{3}3

surface area to volume ratio = surface area ÷ volume

What is the surface area to volume ratio of the nanoparticle?

[1]
A

0.33 : 1

B

1.5 : 1

C

3 : 1

D

12 : 1

Markscheme

2.3 Properties of materials Questions

  1. GCSE
  2. /Chemistry
  3. /2.3 Properties of materials

60 exam-style questions on OCR GCSE Chemistry 2.3 Properties of materials, covering 2.3.1 Carbon bonding and the variety of organic compounds, 2.3.2 Diamond, graphite, fullerenes and graphene, 2.3.3 Bond strength, changes of state and predicting states, 2.3.4 Bulk properties and types of bonding, and 2.3.5 Nanoparticles: scale, surface area, uses and risks. Each one has a worked solution and a mark scheme showing where the marks go.

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