which element has the smaller critical mass;U-235 that release 2.5 neutrons per fission, or PU-239 that 2.7...

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which element has the smaller critical mass;U-235 that release 2.5 neutrons per fission, or PU-239 that 2.7...

which element has the smaller critical mass;U-235 that release 2.5 neutrons per fission, or PU-239 that 2.7 neutrons per fission?
a)U-235
b)PU-239
c) both would have the same critical mass.

2007-05-26 06:26:57 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Physics

1 answers

Critical mass:
uranium-235 52 kg
plutonium-239 10 kg

2007-05-26 06:53:50 · answer #1 · answered by Helmut 7 · 1⤊ 0⤋