Convert kiloelectron-volt to megajoule
Please provide values below to convert kiloelectron-volt [keV] to megajoule [MJ], or Convert megajoule to kiloelectron-volt.
How to Convert Kiloelectron-Volt to Megajoule
1 keV = 1.602176634e-22 MJ
Example: convert 15 keV to MJ:
15 keV = 15 × 1.602176634e-22 MJ = 2.403264951e-21 MJ
Kiloelectron-Volt to Megajoule Conversion Table
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Kiloelectron-Volt
A kiloelectron-volt (keV) is a unit of energy equal to 1,000 electron-volts, commonly used in atomic and nuclear physics to measure small amounts of energy.
History/Origin
The electron-volt was introduced in the early 20th century as a convenient unit for expressing energies at the atomic scale, with the prefix 'kilo' added later to denote 1,000 electron-volts, especially in high-energy physics and astrophysics.
Current Use
The keV is widely used today in fields such as X-ray spectroscopy, astrophysics, and particle physics to quantify energies of particles, photons, and nuclear processes.
Megajoule
A megajoule (MJ) is a unit of energy equal to one million joules.
History/Origin
The megajoule was introduced as part of the metric system to measure large amounts of energy, especially in scientific and engineering contexts, aligning with the SI units established in the 20th century.
Current Use
The megajoule is used in fields such as physics, engineering, and energy industries to quantify large energy quantities, including in energy production, consumption, and scientific research.