(1) In scientific terms, 1 calorie is a kilocalorie , which is the amount of energy required to raise 1 gram of water 1 degree Celsius.(2) The units typically used for heats of sublimation are kilojoule per mole or kilocalories per mole.(3) In the United States, energy is expressed in kilocalories or megacalories (Mcal).(4) For most people, a daily diet containing 2000 calories of energy (actually 2000 kilocalories , but never mind) is about right.(5) In nearly half of these African countries, the undernourished are getting 300 kilocalories less than what they need to be healthy.
