Convert attojoule/second to kilocalorie (th)/hour
Please provide values below to convert attojoule/second [aJ/s] to kilocalorie (th)/hour [kcal(th)/h], or Convert kilocalorie (th)/hour to attojoule/second.
How to Convert Attojoule/second to Kilocalorie (Th)/hour
1 aJ/s = 8.60420651740766e-19 kcal(th)/h
Example: convert 15 aJ/s to kcal(th)/h:
15 aJ/s = 15 × 8.60420651740766e-19 kcal(th)/h = 1.29063097761115e-17 kcal(th)/h
Attojoule/second to Kilocalorie (Th)/hour Conversion Table
| attojoule/second | kilocalorie (th)/hour |
|---|
Attojoule/second
An attojoule per second (aJ/s) is a unit of power representing the rate of energy transfer or conversion of one attojoule (10^-18 joules) per second.
History/Origin
The attojoule is a relatively recent SI prefix introduced to measure extremely small quantities of energy, and its use in power units like aJ/s has emerged with advancements in nanotechnology and quantum physics, though it remains a specialized unit with limited historical usage.
Current Use
The aJ/s is used in scientific research involving extremely low power measurements, such as in quantum physics, nanotechnology, and energy transfer studies at the atomic or molecular scale.
Kilocalorie (Th)/hour
A kilocalorie (th)/hour (kcal(th)/h) is a unit of power representing the rate at which energy in kilocalories per hour is transferred or converted.
History/Origin
The kilocalorie, often used in nutrition and energy measurement, has been adapted into various units including the thermochemical kilocalorie (kcal(th)). Its use in power measurement, such as kcal(th)/h, is primarily for specialized scientific and engineering applications, integrating energy units with time to express power.
Current Use
The kcal(th)/h unit is used in contexts requiring the measurement of energy transfer rates in thermochemical terms, such as in thermal engineering, calorimetry, and energy efficiency assessments where energy flow is expressed in kilocalories per hour.