Answer
1.7$\times$$10^{12}$ Joule energy is produced from fusion of per mole of deuterium & per mole of tritium.
Work Step by Step
One atom of Deuterium and one atom of tritium produces 2.8$\times$ $10^{-12}$ J of energy on fusion.
1 mole atom means 6.023 $\times$ $10^{23}$ no. of atoms.
Hence, 1 mole of deuterium and 1 mole of tritium will produce 6.023 $\times$ $10^{23}$ $\times$ 2.8 $\times$ $10^{-12}$ = 1.68644 $\times$ $10^{12}$ J $\approx$ 1.7$\times$$10^{12}$ Joule of energy
