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<blockquote data-quote="Trey803" data-source="post: 5058237" data-attributes="member: 565472">Antimatter is said to be the most expensive substance in existence, with an estimated cost of $300 billion per milligramIn antimatter-matter collisions resulting in photon emission, the entire rest mass of the particles is converted to kinetic energy. The energy per unit mass (9×1016 J/kg) is about 10 orders of magnitude greater than chemical energy (compared to TNT at 4.2×106 J/kg, and formation of water at 1.56×107 J/kg), about 4 orders of magnitude greater than nuclear energy that can be liberated today using nuclear fission (about 40 MeV per 238U nucleus transmuted to Lead, or 1.5×1013 J/kg), and about 2 orders of magnitude greater than the best possible from fusion (about 6.3×1014 J/kg for the proton-proton chain). The reaction of 1 kg of antimatter with 1 kg of matter would produce 1.8×1017 J (180 petajoules) of energy (by the mass-energy equivalence formula E = mc²), or the rough equivalent of 47 megatons of TNT. For comparison, Tsar Bomba, the largest nuclear weapon ever detonated, reacted an estimated yield of 57 Megatons, which required the use of hundreds of kilograms of fissile material</blockquote>

[QUOTE="Trey803, post: 5058237, member: 565472"] Antimatter is said to be the most expensive substance in existence, with an estimated cost of $300 billion per milligram In antimatter-matter collisions resulting in photon emission, the entire rest mass of the particles is converted to kinetic energy. The energy per unit mass (9×1016 J/kg) is about 10 orders of magnitude greater than chemical energy (compared to TNT at 4.2×106 J/kg, and formation of water at 1.56×107 J/kg), about 4 orders of magnitude greater than nuclear energy that can be liberated today using nuclear fission (about 40 MeV per 238U nucleus transmuted to Lead, or 1.5×1013 J/kg), and about 2 orders of magnitude greater than the best possible from fusion (about 6.3×1014 J/kg for the proton-proton chain). The reaction of [B]1 kg[/B] of antimatter with [I][B]1 kg[/B][/I] of matter would produce [B]1.8×1017 J (180 petajoules)[/B] of energy (by the mass-energy equivalence formula E = mc²), or the rough equivalent of 47 megatons of TNT. For comparison, Tsar Bomba, [B]the largest nuclear weapon ever detonated, reacted an estimated yield of 57 Megatons, which required the use of hundreds of kilograms of fissile material[/B] [/QUOTE]

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