When a Neutron Collides with a Uranium-235 Nucleus It Can $\begin{array} { c } 235 \\92\end{array}$

question 55

Multiple Choice

When a neutron collides with a uranium-235 nucleus it can induce a variety of fission reactions. One such reaction is $\begin{array} { c } 235 \\92\end{array}$ U + $\begin{array} { l } 1 \\0\end{array}$ n ? $\begin{array} { c } 140 \\54\end{array}$ Xe + $\begin{array} { l } 94 \\38\end{array}$ Sr + 2 $\begin{array} { l } 1 \\0\end{array}$ n The following mass values are known: $\begin{array} { c } 140 \\54\end{array}$ Xe: 139.921620 u $\begin{array} { l } 94 \\38\end{array}$ Sr: 93.915367 u $\begin{array} { c } 235 \\92\end{array}$ U: 235.043924 u $\begin{array} { l } 1 \\0\end{array}$ 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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