When a Stationary Plutonium-239 Nucleus Decays into a Uranium-235 Nucleus $\begin{array} { l } 4 \\2\end{array}$

question 160

Multiple Choice

When a stationary plutonium-239 nucleus decays into a uranium-235 nucleus plus an alpha particle, the energy released in the process is 5.24 MeV. The following masses are known: $\begin{array} { l } 4 \\2\end{array}$ He: 4.002603 u $\begin{array} { c } 235 \\92\end{array}$ U: 235.043924 u What is the kinetic energy of the $\begin{array} { c } 235 \\92\end{array}$ U nucleus? (1 u = 931.5 MeV/c²)

• A)0.0829 MeV
• B)0.0837 MeV
• C)0.0852 MeV
• D)0.0863 MeV
• E)0.0877 MeV

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