Nuclear fusion | High school chemistry | Khan Academy

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During nuclear fusion, two or more nuclei combine to form a different nucleus. When light nuclei fuse to produce a nucleus lighter than iron, energy is released (exothermic). When heavy nuclei fuse to produce a nucleus heavier than iron, energy is absorbed (endothermic). The release or absorption of energy relates to the difference in total mass of the reactants and products by E=mc^2. Nuclear fusion powers the Sun and other stars.
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Пікірлер: 22

  • @Aditya2364
    @Aditya23643 ай бұрын

    Sir please cover whole chemistry of class 11th and 12th. I like your teaching sir . Please!

  • @rananjanabandara2376
    @rananjanabandara23763 ай бұрын

    Next video want to be about nuclear fission

  • @merlepatterson
    @merlepatterson3 ай бұрын

    When it coms to fusion, gravity is the key primary ingredient.

  • @C.G.O.Iddamalgoda
    @C.G.O.Iddamalgoda3 ай бұрын

    I needed this right now thanks 😊

  • @sinekonata
    @sinekonata22 күн бұрын

    Stars the size of the sun don't have the energy to collapse into supernovae, they collapse into white dwarves and then continue fusion into iron spheres then cool off.

  • @pandpp3144
    @pandpp31443 ай бұрын

    It so fun i like sciene thank you for teaching❤

  • @sinekonata
    @sinekonata22 күн бұрын

    8Be is actually unstable. Very fast it splits back into 2 alphas again. But 8Be is used in the triple alpha process in big stars for the short time it doesn't decay to fuse with another alpha and produce 12C.

  • @sinekonata

    @sinekonata

    22 күн бұрын

    The only stable isotope of Be is 7Be I think.

  • @webocampo
    @webocampo3 ай бұрын

    I want the next video to be about space pls

  • @MrYellowAndYacello
    @MrYellowAndYacello2 ай бұрын

    Wait.... is that the voice of FloatHeadPhysics!?!

  • @Mahesh_Shenoy

    @Mahesh_Shenoy

    2 ай бұрын

    Yus!

  • @sinekonata
    @sinekonata22 күн бұрын

    So a Joule is actually a gm²/s²?

  • @sudevnarayan1074
    @sudevnarayan10743 ай бұрын

    awsome very helfull

  • @harishs87
    @harishs872 ай бұрын

    Let's make some noise for the man "Mahesh Shenoy"

  • @superpie0000
    @superpie00003 ай бұрын

    ❤❤

  • @chlodnia
    @chlodnia3 ай бұрын

    Thanks

  • @je_suis_une_pomme
    @je_suis_une_pomme3 ай бұрын

    isn't it positron decay and not beta decay? 10:03

  • @christinejackson6630

    @christinejackson6630

    3 ай бұрын

    Positron emission is a type of beta decay.

  • @MrYellowAndYacello

    @MrYellowAndYacello

    2 ай бұрын

    This type of beta decay is called “Beta-plus decay”, it's a nuclear process in which a proton decays into a neutron, positron, and neutrino.

  • @maltreser6084
    @maltreser60843 ай бұрын

    Where did the Big Bang come from?

  • @maltreser6084

    @maltreser6084

    3 ай бұрын

    And where did the source of that source come from..

  • @rachidazala4093

    @rachidazala4093

    3 ай бұрын

    a bigger power@@maltreser6084