Calorie abbreviation card, abbreviated as Cal, transliterated from English Calorie, is an expression unit of calories and an international measurement unit of calories. 1 calorie is defined as the heat required to raise 1 gram of water to 1 degree Celsius. Although this definition is abstract, you can see that the heat value is actually very low, so the heat is a very small unit.
The thermal effect of carbohydrate food (rice flour) is 5%-6% of its own energy, fat (grease) is 4%-5%, and protein (meat, fish, eggs and milk) is 30%-40%.
Extended data
Conversion formula:
1 card equals 4.2 joules? Unit conversion of heat: 1 kcal/kg = 1 kcal = 4.1868kj = 1 kcal/g.
Its relationship with Joule is: at 20℃ 1 calorie = 4. 1868 J.
Some countries use 15℃ cards. Its relationship with Joule is:1calot15℃ = 4.1855j.
Some countries use international steam meter cards. Its relationship with Joule is: 1 calorie IT = 4. 1868 J.
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