Question

A star converts all its $He$ in Oxygen. Find the amount of energy released per nucleus of oxygen. $He$ = $4.0026$ amu $O$ = $15.9994$ amu

• A. $7.26$ MeV
• B. $7$ MeV
• C. $10.24$ MeV
• D. $5.12$ MeV

Answer 1

Answer: (C)

$10.24$ MeV

$E=△m{c}^2$
$=[4\times 4.0026-15.9994]931.5=10.24$ MeV