How do you convert from joules to electron volts?
1 Answer
Apr 14, 2018
By definition one electron volt is the energy acquired by an electron when it is accelerated through a potential difference of 1 volt
#1\ "eV"=(1.60217662 × 10^-19\ "C")xx(1\ "V")#
#1\ "eV"=1.60217662 × 10^-19\ "J"#
#1\ "eV"=1.602 × 10^-19\ "J"# , rounded to three decimal places.
Conversely, one joule is the energy acquired by one coulomb of charge when it is accelerated through a potential difference of 1 volt
#1\ "J"=(6.2415091 × 10^18\ "e")xx(1\ "V")#
#1\ "J"=6.2415091 × 10^18\ "eV"#
#1\ "J"=6.242 × 10^18\ "eV"# , rounded to three decimal places.
