Convert foot-pound to Hartree energy
Please provide values below to convert foot-pound [ft*lbf] to Hartree energy [Eh], or Convert Hartree energy to foot-pound.
How to Convert Foot-Pound to Hartree Energy
1 ft*lbf = 3.10985379843726e+17 Eh
Example: convert 15 ft*lbf to Eh:
15 ft*lbf = 15 × 3.10985379843726e+17 Eh = 4.66478069765589e+18 Eh
Foot-Pound to Hartree Energy Conversion Table
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Foot-Pound
A foot-pound is a unit of energy or work equal to the work done when a force of one pound-force is exerted over a distance of one foot.
History/Origin
The foot-pound has been used primarily in the United States and the United Kingdom as a customary unit of energy, originating from imperial and US customary measurement systems, before the widespread adoption of the SI system.
Current Use
Today, the foot-pound is still used in certain fields such as engineering, automotive, and aerospace industries in the US for expressing torque and energy, although the SI unit joule is more common internationally.
Hartree Energy
The Hartree energy (Eh) is a unit of energy used in atomic physics, representing the total energy of an electron in a hydrogen atom in its ground state.
History/Origin
Named after the American physicist Douglas Hartree, the Hartree energy was introduced in the early 20th century as a fundamental atomic unit of energy within the system of atomic units, facilitating calculations in quantum mechanics.
Current Use
The Hartree energy is primarily used in theoretical and computational chemistry and physics to express energies at the atomic and molecular scale, especially in quantum chemistry calculations and atomic physics research.