Question

Compute the total energy released in the following set of fusion reactions:

(a) ^{1}H + ^{1}H → ^{2}H +
e^{+} + v_{e}

(b) ^{1}H + ^{1}H → ^{3}He +
*γ*

(c) ^{3}He + ^{3}He → ^{4}He +
2^{1}H + *γ*

Answer #1

The set of reactions shown are famously called as the proton cycle. which is responsible for the creation of energy on stars.

equating the participating chemical species mass and the products mass we can calculate the energy

The total reaction can be written as

Now we can substitute the individual mass of particles which are participating and the net difference in the mass multiplied by c^2 will give us the energy in Joules

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