Discover the seamless conversion from kcal to E_h with our Kilocalorie IT to Hartree Energy Converter, and unravel the simplicity of energy unit transformations.
A kilocalorie (kcal) is a unit of energy commonly used in measuring the calorific, heating, or metabolic value of foods. It is equivalent to 1000 calories, the amount of energy needed to raise the temperature of one kilogram of water by one degree Celsius.
Definition of HartreeThe Hartree energy (E_h) is a physical constant used in atomic physics, named after the physicist Douglas Hartree. It is the unit of energy in the Hartree atomic units system, equivalent to the kinetic energy of an electron orbiting an atomic nucleus in the ground state.
| Kilocalorie IT (kcal) | Hartree Energy (E_h) |
|---|---|
| 1 kcal | 2.611448e+23 E_h |
| 2 kcal | 5.222896e+23 E_h |
| 3 kcal | 7.834344e+23 E_h |
| 5 kcal | 1.305724e+24 E_h |
| 10 kcal | 2.611448e+24 E_h |
| 20 kcal | 5.222896e+24 E_h |
| 50 kcal | 1.305724e+25 E_h |
| 100 kcal | 2.611448e+25 E_h |
| 200 kcal | 5.222896e+25 E_h |
| 500 kcal | 1.305724e+26 E_h |
1 kcal = 2.611448e+23 E_h
10 kcal = 2.611448e+24 E_h
Example 1:
Convert 5 kcal to E_h:
5 kcal = 5 × 2.611448e+23 E_h = 1.305724e+24 E_h
Example 2:
Convert 20 kcal to E_h:
20 kcal = 20 × 2.611448e+23 E_h = 5.222896e+24 E_h
A brief history of the Kilocalorie IT to Hartree Energy Converter reflects the evolution of energy measurement from food-based calorie calculations to the quantum mechanical energy scale used in atomic physics, illustrating the diverse applications of energy conversion in science.
Explore the practical applications where converting kcal to E_h can enhance your understanding and efficiency in scientific endeavors.
Example 1: To convert 15 kcal to E_h, the result is 15 kcal × 2.611448e+23 E_h/kcal = 3.917172e+24 E_h.
Example 2: To convert 25 kcal to E_h, the result is 25 kcal × 2.611448e+23 E_h/kcal = 6.528620e+24 E_h.
Q1:
What is the significance of converting kcal to E_h?
A1:
This conversion is important for bridging dietary energy measurements and atomic-scale energy units in scientific research.
Q2:
How accurate is the kcal to E_h conversion?
A2:
The converter uses precise constants for conversion, ensuring high accuracy in the results.
Q3:
Can I convert E_h back to kcal?
A3:
Yes, the converter is capable of inverse calculations, allowing you to convert E_h to kcal as well.
