One of the hopes for solving the world's energy problem is
tomake use of the fusion reaction:

how much energy is released when one mole ofdeuterium is fused
with one mole of tritium according to the abovereaction? the masses
of the atoms and the neutrons are:
2h = 2.0140 amu 3h =3.01605 amu
4he = 4.002603 amu 1n =1.008665 amu
the speed of light is 2.9979x108m/s.

2.803013439419911 × 10⁻¹² J

Explanation:

Mass defect = mass of reactant - mass of product

(2.0140 + 3.01605) - (4.002603 + 1.008665)

5.03005 - 5.011268 = 0.018782 amu

mass in Kg = mass (amu) × 1.66053892173 × 10⁻²⁷ kg

mass in kg = 0.018782 × 1.66053892173 × 10⁻²⁷ = 3.1188242027932 × 10⁻²⁹kg

E = Δm c² where c is the speed of light = 2.9979 × 10⁸m/s

E = 3.1188242027932 × 10⁻²⁹kg × (2.9979 × 10⁸m/s)² = 2.803013439419911 × 10⁻¹² J