Department of Pre-University Education, Karnataka course PUC Karnataka Science Class 12
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Calculate the Energy Released by 1g of Natural Uranium Assuming 200 Mev is Released in Each Fission Event and that the Fissionable Isotope 235u Has an Abundance of 0.7% by Weight in Natural Uranium. - Physics

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Question

Calculate the energy released by 1g of natural uranium assuming 200 MeV is released in each fission event and that the fissionable isotope 235U has an abundance of 0.7% by weight in natural uranium.

Solution

235 g of uranium contains 6.02 × 1023 atoms.

1 g of uranium = `1/235 xx 6.023 xx 10^23` atoms

∴ 0.7 g of uranium = `1/235 xx 6.023 xx 10^23 xx 0.007` atoms

1 atom gives 200 MeV. 

∴ Total energy released = `(6.023 xx 10^23 xx 0.007 xx 200 xx 10^6 xx 1.6 xx 10^-19)/235 "J" = 5.74 xx 10^8 "J"`

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Solution Calculate the Energy Released by 1g of Natural Uranium Assuming 200 Mev is Released in Each Fission Event and that the Fissionable Isotope 235u Has an Abundance of 0.7% by Weight in Natural Uranium. Concept: Nuclear Energy - Fission.
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