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The source of energy of stars is nuclear...

The source of energy of stars is nuclear fusion. Fusion reaction occurs at very high temperature, about `10^(7) `. Energy released in the process of fusion is due to mass defect. It is also called `Q`-value. `Q = Delta mc^(2), Delta m =` mass defect.
The binding energy per nucleon of `._(1)H^(2)` and `._(2)He^(4)` are `1.1 MeV` and `7 MeV`, respectively. If two deuteron nuclei react to form a single helium nucleus, then the energy released is

A

`13.9 MeV`

B

`26.9 MeV`

C

`23.6 MeV`

D

`19.3 MeV`

Text Solution

Verified by Experts

The correct Answer is:
C
`E = Delta m xx 931 MeV`, where `Delta m =` mass defect
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