The mechanical equivalent of heat is 4.2 joules per calorie. Note the small c in calorie - this is the original, scientific unit of heat. It is defined as the amount of heat needed to raise the temperature of one gram of water by one degree Celsius. Note also that the question wanted a conversion into Calories, with a capital C. This is the type of unit that is used for the energy content of food, although most cooks and nutritionists spell it with a small c. Scientists normally refer to it as a Kilo-calorie, which says exactly what it is, one thousand calories. This makes the question fairly easy to answer, because 4.2 joules/calorie translates straight into 4.2 kilojoules per Calorie. So, 1335KJ/4.2 gives 318 Calories.
kilo means 1000. 1 kilojoule = 1000 joules
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The energy of food is measured by the kilo calories. It will be printed on each food packet's back.
About one megajoule. About, because Joule (as an abbreviation) should be spelt with an upper case initial, since it is named after a real person. 1MJ.For a list of all the SI prefixes, (mega, milli,) see the subject under the BIPM website. (Bureau Intenational des Poids et Measures). This is the international agency responsible for these things.
The prefix kilo- means 1000.
roughly 25 calories, 1 calorie is roughly 4 joules.
To convert Joules to kilocalories, divide the amount of energy in Joules by 4184 (the conversion factor between Joules and kilocalories). Thus, 263 Joules is equivalent to approximately 0.063 kcal.
3280 kcal = 13,730 kJ
160 Calories is equivalent to approximately 669 kilojoules of energy.
no, that's a conversion factor of 4.184
To convert from kilo joules to joules you have divide by 1000 as 1 kilo joule is equal to 1000 joules. E.g. 2 kilo joules equals 2000 joules.
There are 1,000 calories in a kilocalorie. The prefix kilo meaning 1,000. So, 407 kilocalories x 1000 (conversion factor from kilocalories to calories) = 407,000 calories.
There are 56,000 joules in 56 kilojoules. This is because there are 1,000 joules in a kilojoule.
1 calorie = 4.18 joules; 470 joules = 112 cal; 1 nutritional cal(Cal) = 1 kilo-cal = 1000 cal; 470 joules = 0.112 Cal
Diet Coke contains approx. 1.3 calories which is equivalent to 5 kilo-joules.
Kilo means 1000 So the answer is 1/1000 = .001 kJ
A 20 oz bottle of Pepsi contains 250 calories and a 16-ouncer contains 200 calories.