Nuclear fission is preffered to nuclear fusion in the generation of energy because
A
very high temperature are required for fusion
B
the raw materials for fusion are easily obtained
C
energy obtained from fusion is relatively small
D
the by-products of fusion is very dangerous
Verified Correct Answer: A.
Physical Principles & Numerical Solution
Elevated temperatures are necessary to initiate fusion but not fission reactions because, In a fission reaction, the positively charged nucleus and neutrally charged neutrons clash to start the fission process. The procedure can be carried out at lower temperatures since it has a low activation barrier.
NOTE: fusion creates less radioactive material than fission.
Source: Myschool Past Questions Archive (Record #35111)