•3,500 kcal = 1 lb. of fat
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There are approximately 3,500 kilocalories in a pound of body weight, which represents the energy needed to gain or lose one pound of weight.
35,000 Kilo equals 103 which is 1,000. so, 35 kilocalories is 35,000 calories.
This heat is 32,48 joules.
The number of kilocalories in a food indicates the amount of energy in the foods you eat.
In cellular respiration, one mole of glucose produces approximately 38 moles of ATP, and each mole of ATP yields around 7.3 kilocalories when broken down. So, 1.5 moles of glucose would yield around 38 * 1.5 * 7.3 = 415.5 kilocalories in total.
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.