Explore the quick and accurate Hartree Energy to Millijoule Converter developed by Newtum. Convert E_h to mJ with ease, sparking your curiosity to learn more about this essential tool.
The Hartree, symbolized as E_h, is the atomic unit of energy. It's named after the British physicist Douglas Hartree. It is defined as the kinetic energy of an electron moving in a circular orbit around a nucleus in a hydrogen atom. One Hartree is approximately 4.35974465 x 10^-18 joules. This unit is prevalent in quantum chemistry and atomic physics, providing a convenient measure for energy levels in atoms and molecules.
Definition of MillijouleA millijoule, denoted as mJ, is a metric unit of energy equal to one-thousandth of a joule. As a small unit of energy, it is commonly used in scientific contexts where precise measurements are required. The joule itself is the SI unit of energy, representing the amount of work done when a force of one newton displaces an object through a distance of one meter. Millijoules are important in fields such as physics, chemistry, and engineering for quantifying very small energy changes.
| Hartree Energy (E_h) | Millijoule (mJ) |
|---|---|
| 1 E_h | 2625.50 mJ |
| 2 E_h | 5251.00 mJ |
| 3 E_h | 7876.50 mJ |
| 4 E_h | 10502.00 mJ |
| 5 E_h | 13127.50 mJ |
| 6 E_h | 15753.00 mJ |
| 7 E_h | 18378.50 mJ |
| 8 E_h | 21004.00 mJ |
| 9 E_h | 23629.50 mJ |
| 10 E_h | 26255.00 mJ |
1 E_h = 2625.50 mJ
1 mJ = 0.00038088 E_h
Example 1:
convert 2 E_h to mJ:
2 E_h = 2 × 2625.50 mJ = 5251 mJ
Example 2:
convert 0.5 E_h to mJ:
0.5 E_h = 0.5 × 2625.50 mJ = 1312.75 mJ
A brief history of the Hartree Energy to Millijoule Converter traces back to the establishment of the Hartree as a unit of energy within the atomic system of units. The conversion to millijoules is a modern necessity for scientists dealing with multiple energy units across various disciplines, thus bridging atomic physics and practical measurements.
Discover the practical applications where converting Hartree Energy to Millijoules can be a game-changer in scientific analysis and research.
Example 1:
Convert 3 E_h to mJ:
3 E_h = 3 × 2625.50 mJ = 7876.50 mJ
Example 2:
Convert 0.75 E_h to mJ:
0.75 E_h = 0.75 × 2625.50 mJ = 1969.125 mJ
Q1:
What is Hartree Energy?
A1:
Hartree Energy, denoted as E_h, is a unit of energy used primarily in atomic physics to describe the energy levels of electrons in atoms.
Q2:
How many millijoules are in one Hartree?
A2:
One Hartree is equivalent to approximately 2625.50 millijoules.
Q3:
Why convert Hartree Energy to Millijoules?
A3:
Converting from Hartrees to millijoules is necessary when comparing theoretical energy values with those measured in practical experiments.
