Disposal of addition polymers
3 marks · NormalExplain why incineration of addition polymers is used in some countries. Discuss both an advantage and a disadvantage of this disposal method.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
Also accept: Alternative wording for the same points
Common mistakes: Not linking advantage or disadvantage to the question; Confusing incineration with recycling
Show mark scheme and worked solution
Marking points
M1 · 1 mark · Explains incineration is used because it generates useful heat energy.
B1 · 1 mark · Describes an advantage (e.g., reduces waste in landfill, generates electricity).
B2 · 1 mark · Describes a disadvantage (e.g., releases CO2, pollution).
Worked solution
Incineration is used because burning addition polymers produces a large amount of heat energy, which can be used to generate electricity.
An advantage is that it reduces the amount of waste sent to landfill.
A disadvantage is that burning polymers produces carbon dioxide, a greenhouse gas that contributes to climate change.