Question

A certain mass of Hydrogen is changed to Helium by the process of fusion. The mass defect in fusion reaction is 0.02866 u. The energy liberated per u is : (given 1u = 931 MeV)

• A. 13.35 MeV
• B. 2.67 MeV
• C. 26.7 MeV
• D. 6.675 MeV

Answer 1

Answer: (D)

6.675 MeV

Answer 2

Energy released per u
$= \left( \frac{0.02866}{4} \right) (931 MeV ) = 6.675 \, MeV$