Why is carbon better than lead as a moderator in nuclear reactors?
A)Carbon produces the high energy,high speed neutrons necessary for maintaining the nuclear chain reaction.
B)Carbon slows down the neutrons making them more effective in stimulating the nuclear chain reaction.
C)Lead absorbs the neutrons rather than allowing them to rebound to maintain the nuclear chain reaction.
D)Lead slows down the neutrons making them less effective in stimulating the nuclear chain reaction.

Question

Quizplus · Accepted Answer

Carbon is a better moderator than lead in nuclear reactors because it slows down the neutrons, making them more effective in stimulating the nuclear chain reaction. Lead absorbs the neutrons rather than allowing them to rebound, making it less effective as a moderator. Carbon does not produce high energy, high-speed neutrons necessary for maintaining the nuclear chain reaction.

Why Is Carbon Better Than Lead as a Moderator in Nuclear