Chemistry (PLEASE HELP)
posted by Jamie on .
Which of the following statements are true?
Fusion reactions result in nuclei with higher Z.
To keep a nuclear power plant going, a chain reaction must be maintained.
Nuclear fusion produces no long-lived radioactive by-products.
The Sun is a nuclear fusion reactor.
I tried true, false, false, true and my teacher said that this was incorrect. Please help
1;2;;4; So I think your second one is incorrect. Consider fusion of two hydrogent to make Helium
just for clarification. 1, 2, and 4 are true
"Nuclear fusion produces no long-lived radioactive by-products. "
Perhaps it depends on wht you mean by 'long lived' and if only by-products from the actual fusion are considered. There are disposal considerations for radioactive waste from fusion.
For info on fusion see the JET web site.
I would have put
1 is somewhat vague. Assuming that 1 is referring to a fission plant that is producing energy by fission. A fission plant will still produce heat/energy from decay heat, i.e. with out maintaining a chain reaction. This is a problem with the Japanese reactors, which are producing lots of decay heat.