DP Chemistry (last assessment 2024)
Question 19M.3.hl.TZ2.16b
| Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.3.hl.TZ2.16b |
| Level | hl | Paper | 3 | Time zone | TZ2 |
| Command term | State | Question number | b | Adapted from | N/A |
b.
[Maximum mark: 1]
19M.3.hl.TZ2.16b
This question is about nuclear reactions.
(b)
State one advantage of using fusion reactions rather than fission to generate electrical power.
[1]
Markscheme
Any one of:
fuel is inexpensive/readily available [✔]
no/less radioactive waste is formed [✔]
lower risk of accidents/large-scale disasters [✔]
impossible/harder to use for making materials for nuclear weapons [✔]
larger amounts of energy released per unit mass [✔]
does not require a critical mass [✔]
can be used continuously [✔]
Note: Accept “higher specific energy for fusion”.
Do not accept “no/less waste produced for fusion”.
Accept specific example for a disaster.
Examiners report
This was a well-answered question with most candidates referring to fusion having less or no radioactive waste.
