How is the calorie related to the joule? what is the kcal used for – InterviewSolution

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1.	How is the calorie related to the joule? what is the kcal used for
Answer» The calorie was originally DEFINED as the amount of heat REQUIRED at a pressure of 1 standard atmosphere to raise the temperature of 1 gram of WATER 1° Celsius. ... Since 1925 this calorie has been defined in terms of the joule, the definition since 1948 being that ONE calorie is equal to approximately 4.2 JOULES.

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