3. Fission/Fusion Which statements concerning chain reactions are true? 1. When

Question

• 1. When there is asupercritical mass the chain reaction accelerates until anexplosion occurs.
• 2. When there is a subcritical mass, neutrons escape from the material without causing areaction.
• 3. A critical mass isthe quantity of fissionable material needed to sustain a nuclearreaction with a constant rate of fission.
• 4. A chain reactionoccurs because the fission of uranium-235 produces (on average) 2.4neutrons.

1 only
3 only
1 and 3
4 only
3 and 4
1, 2 and 3
all 4 statements aretrue.

Explanation / Answer

all 4 statements are true

Related Questions

Navigate

• Browse (All)
• Browse 3
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.