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Question 9 of 10
Which of the following statements are true of nuclear energy and reactors?
Check all that apply.
O A. Nuclear reactors on Earth use fusion reactions to produce energy.
B. Nuclear fission reactions use only a small amount of material to
produce a large amount of energy.
C. Nuclear reactors use controlled reactions.
D. Nuclear fission is done by joining nuclei together into a bigger
nucleus.

Sagot :

mickymike92

Answer:

B. Nuclear fission reactions use only a small amount of material to

produce a large amount of energy.

C. Nuclear reactors use controlled reactions.

Explanation:

Nuclear reactors are devices that contain and control nuclear chain reactions while releasing heat produced from these nuclear chain reactions at a controlled rate.

A nuclear power plant uses the enormous amount of heat that are produced from the nuclear chain reactions occurring in the nuclear reactor to turn water into steam, which then drives turbine generators that generate electricity.

The nuclear chain reactions occurring in the nuclear reactor are fission chain reactions. A nuclear fission reaction is a reaction in which a larger atom is split into two or more smaller atoms when bombarded with energetic neutrons resulting in the release of large amounts of energy and more neutrons. The neutrons released split more atoms of the larger atom into smaller atoms in what is known as a chain reaction. This reaction is controlled by means of moderators. A moderator helps slow down the neutrons produced by fission to sustain the chain reaction.

ayfat23

Statements that are right as regards nuclear energy and reactors are ;

B. Nuclear fission reactions use only a small amount of material to

produce a large amount of energy.

C. Nuclear reactors use controlled reactions.

  • Nuclear fission can be regarded as splitting of a large atomic nucleus into smaller nuclei, in this case neutron is absorbed into a nucleus. It utilize small material to produce energy.

  • This process is done by the use of nuclear reactor which brings about a  controlled reaction.

Therefore option B,C, are correct.

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