Atoms And Nuclei Question 349

Question: If a star can convert all the He nuclei completely into oxygen nuclei, the energy released per oxygen nuclei is [Mass of $ He $ nucleus is 4.0026 amu and mass of Oxygen nucleus is 15.9994 mu]

Options:

A) 7.6 MeV

B) 56.12 MeV

C) 10.24 MeV

D) 23.9 MeV

Show Answer

Answer:

Correct Answer: C

Solution:

  • $ 4_{2}^{4}He\xrightarrow{}_{8}^{16}O $

    $ B.E.=\Delta m\times 931.5MeV $

    $ =(4\times 4.0026-15.9994)\times 931.5=10.24MeV $



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