What is meant by the term “electronvolt”?
eV is the amount of kinetic energy gained by a single electron accelerating over a one-volt electric potential difference in vacuum. 1 eV in joules (symbol J) is equal to the electron’s charge in coulombs (symbol C).
1 eV equals 1.6021766341019 J .
What is a joule?
The quantity of energy that may be defined as one joule is the amount of energy that can be exerted when a force of one newton is applied across a distance of 1 meter. One joule is equal to one watt of electricity that is lost as heat or radiated into the environment over the course of one second.
J = eV × 1.602176565⋅10-19
J – Joule and
eV – Electron-Volt
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