Search results
Results From The WOW.Com Content Network
The precise equivalence between calories and joules has varied over the years, but in thermochemistry and nutrition it is now generally assumed that one (small) calorie (thermochemical calorie) is equal to exactly 4.184 J, and therefore one kilocalorie (one large calorie) is 4184 J or 4.184 kJ. [10] [11]
10 9 calories TNT equivalent is a convention for expressing energy , typically used to describe the energy released in an explosion. The ton of TNT is a unit of energy defined by convention to be 4.184 gigajoules ( 1 gigacalorie ), [ 1 ] which is the approximate energy released in the detonation of a metric ton (1,000 kilograms) of TNT .
All calories are not the same. For example, a gram of carbohydrate has 4 calories and the same goes for a gram of protein. A gram of fat provides 9 calories. Carbohydrates generally digest the ...
For thermochemistry a calorie of 4.184 J is used, but other calories have also been defined, such as the International Steam Table calorie of 4.1868 J. In many regions, food energy is measured in large calories (a large calory is a kilocalory, equal to 1000 calories), sometimes written capitalized as Calories. In the European Union, food energy ...
A megaton of TNT (1,000,000 tonnes) or megatonne of TNT is a unit of energy equal to 10 15 calories, also known (infrequently) as a petacalorie (Pcal), equal to 4.184 petajoules (PJ). These are small calories (cal). The large or dietary calorie (Cal) is equal to one kilocalorie (kcal), and is gradually being replaced by the latter correct term.
1.5 teaspoons have 51 calories. Generally, pats will be on the small side of that spectrum. Why is it called a “pat”?
The American Heart Association recommends limiting saturated fat intake to less than 6% of your daily calories, which equals about 13 grams per day for a 2,000-calorie diet. The Bottom Line
A kilocalorie is the equivalent of 1000 calories or one dietary Calorie, which contains 4184 joules of energy.The notion that "a calorie is a calorie" is related to the idea that weight maintenance is a result of equalizing calorie input and calorie output, [4] and may lead to the practice of calorie restriction.