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Calculate the energy released when isotope of carbon, 146c , decays by β− emission. the atomic mass of 146c is 14.003242 u , the atomic mass of 147n is 14.003074 u . assume that…
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Calculate the energy released when isotope of carbon, 146c , decays by β− emission. the atomic mass of 146c is 14.003242 u , the atomic mass of 147n is 14.003074 u . assume that…
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Apr 26, 2019
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Calculate the energy released when isotope of carbon, 146c , decays by β− emission. the atomic mass of 146c is 14.003242 u , the atomic mass of 147n is 14.003074 u . assume that the neutrino has no mass.
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The correct answer is:
156.49
k
eV (0.15649
M
eV)
Step-by-step explanation:
Since
E = mc^2
Where E = Energy = ?
m = mass = (14.003242 -
14.003074) amu = 1.68*10^-4amu
Also 1amu * c^2 = 931.5 MeV
Plug in the values in the equation:
E = (1.68*10^-4)*(931.5 MeV) = 0.15649 MeV = 156.49 keV
Torial
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May 1, 2019
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