Antimatter bomb

When a massive particle collides with its corresponding antiparticle, they annihilate, producing photons with energy equal to their rest mass energy.

Imagine that you had \(1\text{ g}\) of hydrogen and \(1\text{ g}\) of anti-hydrogen. How much energy would you release if you let them collide? Express your answer as an order of magnitude. \(\big(\)That is, give \(k,\) when your answer is of the form \(a \times 10^k\) joules.\(\big)\)

For comparison, the atomic bomb detonated over Nagasaki released \(8.8 \times 10^{13}\text{ J}\).

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