Convert kilocalorie (IT)/minute to femtojoule/second
Please provide values below to convert kilocalorie (IT)/minute [kcal/min] to femtojoule/second [fJ/s], or Convert femtojoule/second to kilocalorie (IT)/minute.
How to Convert Kilocalorie (It)/minute to Femtojoule/second
1 kcal/min = 6.978e+16 fJ/s
Example: convert 15 kcal/min to fJ/s:
15 kcal/min = 15 × 6.978e+16 fJ/s = 1.0467e+18 fJ/s
Kilocalorie (It)/minute to Femtojoule/second Conversion Table
| kilocalorie (IT)/minute | femtojoule/second |
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Kilocalorie (It)/minute
A unit of power representing the energy expended or transferred at a rate of one kilocalorie per minute.
History/Origin
The kilocalorie (kcal) has historically been used to measure energy in food and nutrition, while the minute as a time unit has been standard in timekeeping. Combining these, kcal/min was used to quantify power, especially in contexts like metabolic rates and energy expenditure, before the widespread adoption of the watt as the SI unit of power.
Current Use
The kcal/min is primarily used in fields such as physiology and sports science to express rates of energy expenditure, though it is less common today with the adoption of the watt (W) as the standard SI unit of power.
Femtojoule/second
A femtojoule per second (fJ/s) is a unit of power representing the rate of energy transfer of one femtojoule (10^-15 joules) per second.
History/Origin
The femtojoule/second unit emerged with the development of high-precision measurements in nanotechnology and quantum physics, where extremely small energy transfer rates are relevant. It is derived from the SI units of energy (joule) and time (second), with 'femto' denoting 10^-15.
Current Use
The femtojoule/second is used in scientific research to quantify very small power levels, particularly in fields like nanotechnology, quantum computing, and molecular physics, where energy transfer rates are extremely low.