The conversion of 5 electron volts (ev) to joules equals approximately 8.01 x 10-19 joules.
Since 1 ev equals about 1.602 x 10-19 joules, multiplying 5 ev by this factor gives the energy in joules. This conversion helps to compare energy scales from atomic particles to macroscopic units, making it useful in physics and chemistry calculations.
Calculation Result
5 ev = 8.01 x 10-19 joules
Conversion Tool
Result in joules:
Conversion Formula
The conversion from ev to joules uses the formula: energy (J) = energy (ev) × 1.602 × 10-19. This works because 1 ev is defined as the amount of kinetic energy gained or lost by an electron when it moves through an electric potential difference of 1 volt, which equals 1.602 x 10-19 joules. For example, converting 5 ev involves multiplying 5 by 1.602 x 10-19, resulting in 8.01 x 10-19 joules.
Conversion Example
- Convert 10 ev to joules:
- Multiply 10 by 1.602 x 10-19
- Result: 1.602 x 10-18 joules
- Convert 2.5 ev to joules:
- Multiply 2.5 by 1.602 x 10-19
- Result: 4.005 x 10-19 joules
- Convert 0.1 ev to joules:
- Multiply 0.1 by 1.602 x 10-19
- Result: 1.602 x 10-20 joules
Conversion Chart
| ev | joules |
|---|---|
| -20.0 | -3.204 x 10-18 |
| -15.0 | -2.403 x 10-18 |
| -10.0 | -1.602 x 10-18 |
| -5.0 | -8.01 x 10-19 |
| 0.0 | 0 |
| 5.0 | 8.01 x 10-19 |
| 10.0 | 1.602 x 10-18 |
| 15.0 | 2.403 x 10-18 |
| 20.0 | 3.204 x 10-18 |
| 25.0 | 4.005 x 10-18 |
| 30.0 | 4.806 x 10-18 |
This chart shows ev values from -20 to 30 and their corresponding joules, helping to quickly approximate conversions for common values.
Related Conversion Questions
- How many joules are in 5 ev?
- What is the energy in joules for 5 ev?
- Convert 5 electron volts to joules?
- How do I calculate joules from 5 ev?
- What is the joule equivalent of 5 ev?
- Is 5 ev equal to a certain number of joules?
- How much energy in joules does 5 ev represent?
Conversion Definitions
ev
Electron volt (ev) is a unit of energy that measures the amount of kinetic energy gained or lost by an electron when it moves through an electric potential difference of 1 volt. It’s a common measure in atomic and particle physics, representing very small energy amounts.
Joules
Joules (J) are the SI unit of energy, defining the work done when applying a force of one newton over a distance of one meter. It quantifies energy in all forms, from mechanical to thermal, making it a universal measure for physical work and energy transfer.
Conversion FAQs
How accurate is converting ev to joules using the fixed factor?
The fixed factor of 1.602 x 10-19 is highly accurate because it is based on the definition of the electron volt. Minor variations might occur due to rounding, but for general calculations, this value provides precise results.
Can I use this conversion method for other particles?
No, this specific conversion applies only to electron volts, which are defined by the energy of electrons moving through a potential difference. Other particles or energy types require different conversion factors based on their properties.
Why is ev a preferred unit in atomic physics?
ev provides a convenient way to express very small energies typical at atomic scales, making calculations easier and more intuitive compared to using joules, which are much larger units for such tiny energies.
