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To help compare different orders of magnitude we list here energies between 10-19 joules and 10-18 joules (0.62 and 6.2 eV). Weaker energies 1.602 × 10-19 J -- 1 eV 1.602 × 10-19 J -- Average kinetic energy of a molecule at 11300 ° C 2.7 - 5.2 × 10-19 J -- Range of energy of photons of visible light Stronger energies External link Conversion Calculator for Units of ENERGY (http://www.ex.ac.uk/cimt/dictunit/ccenrgy.htm)