Convert attojoule to Hartree energy
Please provide values below to convert attojoule [aJ] to Hartree energy [Eh], or Convert Hartree energy to attojoule.
1 aJ = 0.229371044869 Eh. To convert attojoule to Hartree energy, multiply the value by 0.229371044869; to go the other way, divide by it (1 Eh = 4.3597482 aJ). Both units measure energy and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 aJ = 0.229371044869 Eh
- 1 Eh = 4.3597482 aJ
- 10 aJ = 2.29371044869 Eh
- 100 aJ = 22.9371044869 Eh
How to Convert Attojoule to Hartree Energy
1 aJ = 0.229371044869059 Eh
Example: convert 15 aJ to Eh:
15 aJ = 15 × 0.229371044869059 Eh = 3.44056567303589 Eh
Attojoule to Hartree Energy Conversion Table
| attojoule | Hartree energy |
|---|---|
| 1 aJ | 0.229371044869 Eh |
| 2 aJ | 0.458742089738 Eh |
| 3 aJ | 0.688113134607 Eh |
| 5 aJ | 1.14685522435 Eh |
| 10 aJ | 2.29371044869 Eh |
| 20 aJ | 4.58742089738 Eh |
| 50 aJ | 11.4685522435 Eh |
| 100 aJ | 22.9371044869 Eh |
| 500 aJ | 114.685522435 Eh |
| 1000 aJ | 229.371044869 Eh |
Attojoule
An attojoule (aJ) is a unit of energy equal to 10^-18 joules.
History/Origin
The attojoule was introduced as part of the SI prefixes to measure extremely small amounts of energy, particularly in fields like nanotechnology and quantum physics, as the need to quantify very tiny energy scales grew.
Current Use
The attojoule is used in scientific research to measure minute energy quantities, such as in nanotechnology, quantum computing, and molecular biology, where energies involved are extremely small.
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 attojoule in Hartree energy?
1 attojoule (aJ) = 0.229371044869 Hartree energy (Eh).
How do you convert attojoule to Hartree energy?
Multiply the attojoule value by 0.229371044869. For example, 25 aJ × 0.229371044869 = 5.73427612173 Eh.
What is 10 attojoule in Hartree energy?
10 aJ = 2.29371044869 Eh.
Which unit is larger, the attojoule or the Hartree energy?
The Hartree energy is the larger unit: 1 aJ equals only 0.229371044869 Eh.