Energy Changes in Nuclear Reactions (Section)The energy

Chapter 2, Problem 49E

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Problem 49E

Energy Changes in Nuclear Reactions (Section)

The energy from solar radiation falling on Earth is 1.07 × 1016 kJ>min.

(a) How much loss of mass from the Sun occurs in one day from just the energy falling on Earth? (b) If the energy released in the reaction

235U + 10n →14156Ba + 9236Kr + 310 n

(235U nuclear mass, 234.9935 amu; 141Ba nuclear mass, 140.8833 amu; 92Kr nuclear mass, 91.9021 amu) is taken as typical of that occurring in a nuclear reactor, what mass of uranium-235 is required to equal 0.10% of the solar energy that falls on Earth in 1.0 day?

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