Kilojoules to Electronvolts Converter
Common Conversions
| kJ | eV |
|---|---|
| 1e-22 | 0.6242 |
| 1e-21 | 6.242 |
| 1e-20 | 62.42 |
| 1e-19 | 624.2 |
| 1e-18 | 6242 |
| 1e-15 | 6242000 |
| 1e-12 | 6242000000 |
| 0.001 | 6242000000000000000 |
| 1 | 6.242e+21 |
| 100 | 6.242e+23 |
| 1000 | 6.242e+24 |
| 10000 | 6.242e+25 |
Why this conversion matters in chemistry
Heterogeneous catalysis is where the per-mole-to-per-particle bridge gets used most often. A bulk reaction energy of 200 kJ/mol is 2.073 eV per reaction event, which is the form an STM experiment on Pt(111) would report a CO-oxidation barrier in. The factor 6.242 × 10²¹ eV/kJ is just the inverse of the elementary charge expressed in joules. Per-mole math collapses out a factor of Avogadro's number, leaving a much more readable conversion: kJ/mol divided by 96.485 gives eV per particle, exactly because 96.485 is the Faraday constant in kJ/(mol·V).
Formula
Worked Examples
The conversion anchor — one kilojoule expressed as a total electronvolt count.
Avogadro's number of eV — exactly the per-particle to per-mole bridge.
One joule in electronvolts — the standard energy unit anchor.
About the per-mole energy of a typical strong bond, in total particle count.