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kJ/mol to Electronvolts Converter
↔ Convert eV/particle to kJ/mol instead

Common Conversions

kJ/mol eV/particle
1 0.01036
2.5 0.0259
10 0.1036
50 0.518
96.485 1
100 1.036
200 2.073
500 5.182
1000 10.364
1312 13.598
5000 51.82

Why this conversion matters in chemistry

Surface-chemistry comparisons is where this conversion shows up. The methane combustion enthalpy at −890 kJ/mol per CH₄ molecule lands at −9.22 eV per particle — the form a Ni(111) dissociative-chemisorption study reports gas-phase reaction exothermicity in. The multiplier of 0.010364 eV per kJ/mol is the inverse of 96.485, the Faraday constant in kJ/(mol · V) and exact through the 2019 SI definition of the elementary charge. It comes up when per-mole thermodynamic data ends up reported in the per-particle electronvolt form a single-molecule or single-event analysis expects.

Formula

eV = kJ/mol × 0.010364

Worked Examples

96.485 kJ/mol = 1 eV

The reverse anchor — the Faraday constant in kJ/(mol · V).

500 kJ/mol = 5.182 eV

About the energy of a strong covalent bond per particle.

1312 kJ/mol = 13.6 eV

Hydrogen first ionization energy — the calibration anchor for atomic-scale energetics.

2.5 kJ/mol = 0.026 eV

About kT at room temperature — the per-particle thermal-energy floor.

Frequently Asked Questions

How do I convert kJ/mol to eV?
Multiply by 0.010364, or equivalently divide by 96.485. So 96.485 kJ/mol becomes 1 eV per particle. The factor is exact through the per-mole to per-particle conversion.
When does this conversion show up?
Comparing thermodynamic data in kJ/mol against spectroscopic or computational results in eV — ionization energies, band gaps, activation barriers. Bridging the per-mole and per-particle scales is the routine first step.
What are typical ionization energies in eV?
Hydrogen 13.6 eV (1312 kJ/mol); helium 24.6 eV (2372 kJ/mol); lithium 5.39 eV (520 kJ/mol); carbon 11.3 eV (1086 kJ/mol). The eV scale keeps the numbers manageable in single or double digits.
How does the factor relate to the Faraday constant?
96.485 kJ/(mol · V) is the Faraday constant F divided by 1000: F = 96,485 C/mol, and 1 eV = 1 V × 1 e. The same constant turns up in electrochemistry as the charge per mole.