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Homework Help: Matter-antimatter energy

  1. Apr 15, 2010 #1
    Science-fiction movies and TV shows often refer to antimatter propulsion
    drives. This is not as far-fetched as it may seem. In a matter-antimatter
    annihilation event, a particle and its antiparticle annihilate each other and
    release all of their mass energy (such as in the reaction p+p→2γ, for
    example). How many of these matter-antimatter annihilation events are
    needed to get our kWh of energy? And what is the total mass of protons and
    antiprotons required to do this?

    Hint: The antiproton has the same mass as that of the proton,
    938.3 MeV/c2 = 1.6726ï10-27 kg.

    I'm not great with the whole concept of anti-matter, any help please? Such as equations to use and general concepts?
  2. jcsd
  3. Apr 15, 2010 #2


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    Welcome to PF!

    Hi abohn1! Welcome to PF! :smile:

    (try using the X2 tag just above the Reply box :wink:)

    You don't need to know anything about anti-matter (and it's the same as matter, anyway :wink:) …

    just use e = mc2. :smile:
  4. Apr 17, 2010 #3
    actually antimatter-matter collisions create so much power! one particle of antimatter with one particle of matter will create 200 times the energy of a hydrogen bomb!!!!!!
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