The molecular binding energy is called the dissociation energy. It is the energy required to separate the atoms in a molecule. The dissociation energy of the NaCl molecule is 4.24 eV. Determine the fractional mass increase of the Na and Cl atoms when they are not bound together in NaCl. What is the mass increase for a mole of NaCl?
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The molecular binding energy is called the dissociation energy. It is the energy required to separate the atoms in a molecule. The dissociation energy of the NaCl molecule is 4.24 eV. Determine the fractional mass increase of the Na and Cl atoms when they are not bound together in NaCl. What is the mass increase for a mole of NaCl?
(a)
Let E denotes the energy, c denotes the light speed, and Δm denotes the mass increased when separated. Therefore, the mass increased can be determined by using the mass-energy equation as,
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