When a Neutron Collides with a Uranium-235 Nucleus It Can $^{235}_{92}$

question 153

Multiple Choice

When a neutron collides with a uranium-235 nucleus it can induce a variety of fission reactions. One such reaction is $^{235}_{92}$ U + $^{1}_{0}$ n → $^{140}_{54}$ Xe + $^{94}_{38}$ Sr + 2 $^{1}_{0}$ n The following mass values are known: $^{140}_{54}$ Xe: 139.921620 u $^{94}_{38}$ Sr: 93.915367 u $^{235}_{92}$ U: 235.043924 u $^{1}_{0}$ n: 1.008665 u
How much energy is released in this reaction? (1 u = 931.5 MeV/c²)

• A) 185 MeV
• B) 202 MeV
• C) 32.6 MeV
• D) 65.7 MeV
• E) 98.6 MeV

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