1°C
A calorie is the amount of heat energy needed to raise the temperature of 1 kilogram of water 1°C. Mentioned in: Malnutrition. a unit of energy, defined as the energy in the form of heat that will raise the temperature of 1 gram of water by 1 degree Celsius. kilocalorie. 1. (kcal or Cal) A unit of energy measurement representing the amount of heat required to raise the temperature of one kilogram of water by 1°C. Also called the international calorie .” 1 kcal = 1000 cal. See calorie. 1. kilocalorie-a unit of heat equal to the amount of heat required to raise the temperature of one kilogram of water by one degree at one atmosphere pressure; used by nutritionists to characterize the energy-producing potential in food. : a unit for measuring heat equal to the amount of heat required to raise the temperature of one gram of water one degree Celsius. 2. : a unit of heat used to indicate the amount of energy foods produce in the human body that is equal to 1000 calories. Calorie (Cal, kcal), 1 the amount of heat (energy) needed to raise the temperature of 1 kg of water 1° C. 2 a unit, equal to the large calorie, used to denote the heat expenditure of an organism and the fuel or energy value of food. Also called great calorie, kilocalorie, kilogram calorie, kcalorie, large calorie. The calorie, or gram calorie, is the quantity of heat required to raise the temperature of 1 gram of pure water 1°C. The kilocalorie, or kilogram calorie, is the quantity of heat required to raise the temperature of 1 kg of pure water 1°C; it is equal to 1,000 cal. Noun. 1. kilocalorie-a unit of heat equal to the amount of heat required to raise the temperature of one kilogram of water by one degree at one atmosphere pressure; used by nutritionists to characterize the energy-producing potential in food. Calorie, kilogram calorie, large calorie, nutritionist's calorie. any of several units of heat defined as the amount of heat required to raise the temperature of 1 gram of water by 1 degree Celsius (1°C) at a specified temperature. The calorie used in chemistry and biochemistry is equal to 4.184 joules.
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A kilocalorie of heat is required to raise the temperature of