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Help me on the A2 Phsysics question please!!

Use your answer to part (a)(iii) to estimate the energy released when 1.0 kg of
uranium, containing 3% by mass of U-235 undergoes fission.

Part a(iii) 214.3 MeV released during the fission process
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NDVA
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Original post by moeeahmed
Use your answer to part (a)(iii) to estimate the energy released when 1.0 kg of
uranium, containing 3% by mass of U-235 undergoes fission.

Part a(iii) 214.3 MeV released during the fission process


I assume that 214.3 MeV is energy released per one U-235 atom.

You know that in 1.0 kg, 3% is U-235 so you can calculate the mass of this isotope. Then from mass you can convert it to mol, and from mol you can convert it to number of atoms. Know you know 214.3 MeV is energy releases per atom, you should be able to estimate the total energy released :smile:

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