Homework Help: chem please help!

Posted by sara on Tuesday, September 11, 2012 at 9:55pm.

The average energy released in the fission of a single uranium-235 nucleus is about 3. 10-11 J. If the conversion of this energy to electricity in a nuclear power plant is 45% efficient, what mass of uranium-235 undergoes fission in a year in a plant that produces 2000 megawatts

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