According to one estimate, there are 4.4 _ 106 metric tons
Chapter 30, Problem 30.1(choose chapter or problem)
According to one estimate, there are 4.4 _ 106 metric tons of world uranium reserves extractable at $130/kg or less. About 0.7% of naturally occurring uranium is the fi ssionable isotope 235U. (a) Calculate the mass of 235U in this reserve in grams. (b) Find the number of moles of 235U and convert to a number of atoms. (c) Assuming 208 MeV is obtained from each reaction and all this energy is captured, calculate the total energy that can be extracted from the reserve in joules. (d) Assuming world power consumption to be constant at 1.5 _ 1013 J/s, how many years could the uranium reserves provide for all the worlds energy needs? (e) What conclusion can be drawn?
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