阿摩線上測驗
24. The atomic mass of 1 H is 1.00782 amu and the mass of a neutron is 1.00866 amu. The binding energy for uranium-235 (atomic mass 235.0439 u) is calculated to be ________ J/nucleon.
(A)
(B)
(C)
(D)
(E)
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統計： A(1), B(2), C(1), D(0), E(0) #2739649
統計： A(1), B(2), C(1), D(0), E(0) #2739649
詳解 (共 1 筆)
面試倒楣鬼-22幸運上後西
#4976360
= (1.00782*92 +1.00866*143 - 235.0439) *(1.5*10-10J )
=(92.719+144.238 -235.0439 )*(1.5*10-10J )= 1.91*(1.5*10-10J ) = 2.865*10-10J
記憶單位:1amu的能量為(1.5*10-10J )
然後題目問的是per nucleon (核子) =2.865*10-10J /235 = 1.219 * 10-12 J ~=(B)
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