For an isotope the mass defect per nucleus is

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Modern Physics · Modern Physics

Problem

\Delta m = 0.0024\,\text{u}

. Given

1\,\text{u}=931\,\text{MeV}/c^{2}

1\,\text{MeV}=1.602\times10^{-13}\,\text{J}

and Avogadro number

N_A = 6.022\times10^{23}\,\text{mol}^{-1}

, the energy released when

1\,\text{mol}

of the nuclei is completely disassembled into free nucleons is approximately (a)

2.2\times10^{10}\,\text{J}

(b)

2.2\times10^{13}\,\text{J}

(c)

2.2\times10^{11}\,\text{J}

(d)

3.6\times10^{9}\,\text{J}