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There are several definitions on kilocalorie,Kilocalorie [IT]

International Steam Table calorie is defined as 1 kcalIT = 4.1868 kJ exactly. This definition was adopted by the Fifth International Conference on Properties of Steam (London, July 1956).

kilocalorie [15°C]

15 °C kilocalorie (kcal15) is defind as the amount of energy required to warm 1 kilogram of air-free water from 14.5 °C to 15.5 °C at a constant pressure of 101.325 kPa (1 ATM). 1 kilocalorie15 = 4.1855 kilojoules. This value is uncertain by 0.0005 kJ, you can see different definition of 4.1858 listed in some other resources.

kilocalorie [20°C]

20 °C kilocalorie is defined as the amount of energy required to warm 1 kg of air-free water from 19.5 °C to 20.5 °C at a constant pressure of 101.325 kPa (1 ATM). This value is about 4.1819 J (NIST).

kilocalorie [thermochemical]

Non-SI unit of energy, which is defined as 4.184 kJ exactly.

So, 75.2 kilocalories is about 314.85 kilojoules.Energy unit conversion at http://www.uniteasy.com/en/unitsCon/Energy.htm
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12y ago
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14y ago

lol Mr.Burbank.

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Q: How do you Convert 75.2 kilo-calories to kilojoules?
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