convert the following numbers of calories or kilocalories into joules and kilo joules? 75.2 calories?

Question

remember kilo means 1000, try to explain the answer in detail

Answer 1

315 joules

Answer 2

Details regarding calories: 1. The word calorie came into general use in English in the 1880s, according to the Oxford English Dictionary. The first example of calorie being used in relation to food rather than heat energy in general was in 1892. 2. The definition of a calorie is the amount of energy needed to raise the temperature of 1 gram of water by 1 degrees C. 3. In nutrition, what we talk of as calories are really kilocalories - enough energy to raise the temperature of a kilogram of water by 1 degrees C. (This is why the metric unit is the kilojoule.) 4. The to begin with diet book to advocate caloric counting and to offer lists of calories was Dr Lulu Hunt Peters Diet and Health With Key to the Calories. The term was new to her readers, and would have been unknown a couple of generations before. She told them that: Hereafter you are going to eat calories of food. As a substitute for saying one slice of bread, or a piece of pie, you will definitely say 100 Calories of bread, 350 Calories of pie. 5. Eating a high-calorie diet when pregnant is linked to giving birth to boys rather than girls. (The rise in low-calorie diets in the developed world is seen as one possible reason for the increasing number of female babies being born compared to male babies.) 6. There are no calories in tea or coffee (just in the milk and sugar that you add) 7. If you average out the calorie consumption on a daily basis in America, it is 3,790 calories per day per person. That is with almost daily recommended calorie absorption at 2, 000 calories per day for the average woman and 2,500 for the average man 8. If you want to drop 1 pound weekly then eat a 500 calorie deficit. For 2 pounds each week eat a 1,000 calorie deficit. good luck

Answer 3

1 calorie = 4.184 joules, 1000 joule = 1 kJ (kilojoules)

75.2 calories = 314.64 joules

so 314.64 joules = 0.314 kJ