1eV96485kJmol

The expression 1eV96485kJmol combines the energy unit electronvolt (eV) with its equivalent value in kilojoules per mole (kJ mol⁻¹). An electronvolt is defined as the kinetic energy gained by an electron when it is accelerated through a potential difference of one volt. In SI units this energy is 1.602 176 634 × 10⁻¹⁹ joules. When this energy is expressed per mole of entities rather than per single entity, the conversion introduces Avogadro’s number (6.022 140 76 × 10²³ mol⁻¹). Multiplying the joule value by Avogadro’s number yields:

1 eV = 1.602 176 634 × 10⁻¹⁹ J × 6.022 140 76 × 10²³ mol⁻¹ ≈ 96.485 kJ mol⁻¹.

Thus 1eV96485kJmol effectively states that one electronvolt equals roughly 96.485 kilojoules per mole. This conversion is frequently cited in chemistry, physics, and materials science when relating atomic‑scale energy changes—such as bond dissociation or reaction enthalpies—to thermodynamic quantities measured per mole of substance.

In practical applications, the 96.485 kJ mol⁻¹ figure is often used to translate experimental data on electronic excitation energies, ionization potentials, or electron affinities into standard thermochemical tables. It also serves as a basis for converting photoelectric or spectroscopic data expressed in electronvolts into calorimetric units, facilitating comparisons between molecular-scale measurements and bulk material properties. Although the value 96.485 kJ mol⁻¹ remains a standard conversion factor, some recent texts emphasize the more precise conversion constant derived from updated fundamental constants, but the difference is negligible for most practical purposes.