DP Chemistry (last assessment 2024)

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Question 18N.3.sl.TZ0.9b.i

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Date November 2018 Marks available [Maximum mark: 1] Reference code 18N.3.sl.TZ0.9b.i
Level sl Paper 3 Time zone TZ0
Command term Outline Question number b.i Adapted from N/A
b.i.
[Maximum mark: 1]
18N.3.sl.TZ0.9b.i

The Sun’s energy is produced by the fusion of hydrogen nuclei.

Uranium-238 produces plutonium-239, which is used as fuel in breeder reactors.

(b.i)

Outline why the term breeder is used for the reactors.

[1]

Markscheme

converts non-fissile «238U» material into fissile «239Pu» material

OR

produces more fissile material than it consumes ✔

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