Skip to content

Course home

10.2 Life cycle assessment and recycling

10.2 Life cycle assessment and recycling

Medium
123456789
Question 8

This question is about materials used to make shopping bags.

a.

Poly(ethene) bags can be recycled or sent to landfill where they do not biodegrade.

Which stage of a life cycle assessment (LCA) would contain this information?

  • Disposal at the end of useful life
  • Extracting and processing raw materials
  • Manufacturing and packaging
  • Use and operation during lifetime
[1]
b.

Ethene is the monomer used to produce poly(ethene). Ethene is obtained from crude oil.

Which two processes are used to produce ethene from crude oil?

  • Cracking
  • Filtration
  • Fractional distillation
  • Neutralisation
  • Chromatography
[2]
c.

Table 1 shows the effect of heating on two different polymers.

Table 1

PolymerEffect of heating
Polymer CSoftens and melts when heated
Polymer DDoes not melt when heated

What type of polymer is Polymer D?

[1]
d.

Why does Polymer D behave differently to Polymer C when heated? You should refer to crosslinks in your answer.

[2]
Markscheme

10.2 Life cycle assessment and recycling Questions

  1. GCSE
  2. /Chemistry
  3. /10.2 Life cycle assessment and recycling

9 exam-style questions on AQA GCSE Chemistry 10.2 Life cycle assessment and recycling, covering 10.2.1 Life cycle assessment and 10.2.2 Ways of reducing the use of resources. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank