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Calorie (15°C) Cal-15 (kg-cal-15) ... Mcal 15: 1.0 Mcal 15 (4.2 MJ) kilocalorie (15°C) kcal-15 (g-cal-15) ... Statistics; Cookie statement;
Energy; system unit code (alternative) symbol or abbrev. notes sample default conversion combinations SI: yottajoule: YJ YJ 1.0 YJ (2.8 × 10 17 kWh) zettajoule: ZJ ZJ 1.0 ZJ (2.8 × 10 14 kWh)
g-cal-IT =cal-IT g-cal-th =cal-th g-kcal-15 =kcal-15 g-kcal-IT =kcal-IT g-kcal-th =kcal-th g-Mcal-15 =Mcal-15 g-mcal-15 =mcal-15 g-Mcal-IT =Mcal-IT g-mcal-IT =mcal-IT g-Mcal-th =Mcal-th g-mcal-th =mcal-th GW-h =GW.h GW·h =GW.h Hartree =Eh hp.h =hph in.lb-f =inlb-f in.lbf =inlbf in.oz-f =inoz-f in.ozf =inozf kbboe =kBOE: symbol = kbboe kg-cal ...
Other units still in use worldwide in some contexts are the kilocalorie per gram (Cal/g or kcal/g), mostly in food-related topics, and watt-hours per kilogram (W⋅h/kg) in the field of batteries. In some countries the Imperial unit BTU per pound (Btu/lb) is used in some engineering and applied technical fields. [1]
The amount of energy required to warm one gram of air-free water from 3.5 to 4.5 °C at standard atmospheric pressure. [b] 15 °C calorie: cal 15: ≈ 4.1855 J ≈ 0.003 9671 BTU ≈ 1.1626 × 10 −6 kW⋅h ≈ 2.6124 × 10 19 eV The amount of energy required to warm one gram of air-free water from 14.5 to 15.5 °C at standard atmospheric ...
Energy densities table Storage type Specific energy (MJ/kg) Energy density (MJ/L) Peak recovery efficiency % Practical recovery efficiency % Arbitrary Antimatter ...
1 cal / °C⋅g = 1 Cal / °C⋅kg = 1 kcal / °C⋅kg = 4184 J / kg⋅K [20] = 4.184 kJ / kg⋅K . Note that while cal is 1 ⁄ 1000 of a Cal or kcal, it is also per gram instead of kilo gram : ergo, in either unit, the specific heat capacity of water is approximately 1.
The "grand calorie" (also "kilocalorie", "kilogram-calorie", or "food calorie"; "kcal" or "Cal") is 1000 cal, that is, exactly 4184 J. It was originally defined so that the heat capacity of 1 kg of water would be 1 kcal/°C. With these units of heat energy, the units of heat capacity are 1 cal/°C = 4.184 J/K ; 1 kcal/°C = 4184 J/K.