1. Thermonuclear fusion and combustion

The energies of atomic and nuclear interactions are usually measured in electron volts (eV) and mega electron volts (MeV), whose conversion factors in joules are: 1 eV = 1.6 × 10 ^–19 J and 1 MeV = 1.6 × 10 ^–13 J. Boltzmann's entropy constant, k _B = 1.380 × 10 ^–23 J/K, which appears in the perfect gas equation (pressure [Pa] = k _B × density [m ^–3 ] × temperature [K]), converts the electronvolt into a temperature: 1 eV [K] =1.6 × 10 ^–19 /k _B = 11,604 K. Depending on usage, we will therefore use a scale in eV to measure energies and...