Convert kilojoule to Hartree energy
Please provide values below to convert kilojoule [kJ] to Hartree energy [Eh], or Convert Hartree energy to kilojoule.
1 kJ = 2.2937e+20 Eh. To convert kilojoule to Hartree energy, multiply the value by 2.2937e+20; to go the other way, divide by it (1 Eh = 4.3597e-21 kJ). Both units measure energy and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 kJ = 2.2937e+20 Eh
- 1 Eh = 4.3597e-21 kJ
- 10 kJ = 2.2937e+21 Eh
- 100 kJ = 2.2937e+22 Eh
How to Convert Kilojoule to Hartree Energy
1 kJ = 2.29371044869059e+20 Eh
Example: convert 15 kJ to Eh:
15 kJ = 15 × 2.29371044869059e+20 Eh = 3.44056567303589e+21 Eh
Kilojoule to Hartree Energy Conversion Table
| kilojoule | Hartree energy |
|---|---|
| 1 kJ | 2.2937e+20 Eh |
| 2 kJ | 4.5874e+20 Eh |
| 3 kJ | 6.8811e+20 Eh |
| 5 kJ | 1.1469e+21 Eh |
| 10 kJ | 2.2937e+21 Eh |
| 20 kJ | 4.5874e+21 Eh |
| 50 kJ | 1.1469e+22 Eh |
| 100 kJ | 2.2937e+22 Eh |
| 500 kJ | 1.1469e+23 Eh |
| 1000 kJ | 2.2937e+23 Eh |
Kilojoule
A kilojoule (kJ) is a unit of energy equal to 1,000 joules, used to quantify energy transfer or work done.
History/Origin
The kilojoule was introduced as part of the International System of Units (SI) to provide a convenient scale for measuring energy, especially in fields like nutrition and physics, replacing the joule for larger quantities.
Current Use
The kilojoule is widely used in nutrition to express food energy content, in physics and engineering to measure energy transfer, and in various scientific and industrial applications within the 'Energy' converter category.
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.
Frequently Asked Questions
What is 1 kilojoule in Hartree energy?
1 kilojoule (kJ) = 2.2937e+20 Hartree energy (Eh).
How do you convert kilojoule to Hartree energy?
Multiply the kilojoule value by 2.2937e+20. For example, 25 kJ × 2.2937e+20 = 5.7343e+21 Eh.
What is 10 kilojoule in Hartree energy?
10 kJ = 2.2937e+21 Eh.
Which unit is larger, the kilojoule or the Hartree energy?
The kilojoule is the larger unit: 1 kJ = 2.2937e+20 Eh.