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Fission · Paper 1 — Free Physics HL Practice Questions

1FoundationMCQNuclear fission process1 markPaper 1~2 min

A uranium-235 nucleus absorbs a thermal neutron and undergoes fission, producing barium-141, krypton-92, and three neutrons. Using the atomic masses

m(^{235}\text{U}) = 235.044\text{ u}

m(^{141}\text{Ba}) = 140.914\text{ u}

m(^{92}\text{Kr}) = 91.926\text{ u}

, and

m_n = 1.009\text{ u}

, what is the energy released in this reaction?

Solutions

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