Technical Terms Dictionary
KILO CALORIES (KCAL)
1 calory is the thermal energy needed to heat 1 g of water by 1 °C, from 19,5 - 20,5 °C.
Kilo calory (kcal)
1000 cal = 1 kcal
In order to heat 1000 g = 1 kg of water, the energy amount needs to be multiplied by 1000, i.e. 1000 cal = 1 kcal.
1 Kilo calory = 4,184 Kilojoule
Internationally, the unit kcal has been replaced by kJ. One kilojoule is the power needed to move 1 kg up 1 m in 1 sec.
The term calory derives from the Latin word for heat "calor".
It is an outdated measuring unit for thermal energy, but still in use for the nutritional information of foods (energy or calorific content), and a person´s energy turnover during physical activity (sports).
The term calory was used when mechanics, thermodynamics and electricity were still applying different energy units.
The internationally valid term today is joule (J).
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