The source of energy of stars is nuclear fusion. Fusion reaction occurs at very high temperature,
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
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