28 x 10^-12 dżula - ile to elektronowoltów? 13,6 eV - ile to dżuli?

13,6 eV=[latex]2,2* 10^{-18} J[/latex] [latex]28* 10^{-12}J = frac{28* 10^{-12}J}{1,6* 10^{-19J} } =17,5 eV[/latex]

[latex]1 eV = 1,6*10^{-19} J[/latex] [latex]28*10^{-12} J =frac{28*10^{-12}J}{1,6*10^{-19}frac{J}{eV}}=17,5*10^{7} eV = 1,75*10^{8} eV\\13,6 eV = 13,6eV*1,6*10^{-19}frac{J}{eV} = 21,76*10^{-19} Japprox2,2*10^{-18} J[/latex]