How is the calorie related to the joule? What is the kcal used for ?
Answers
Answer:
Calorie and Joule are the units of energy. The relation between calorie and joule is proportionate. This implies any change in Calorie will change its equivalent value in Joules
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.
Ans.2 Kilocalorie: The term used to represent the amount of energy required to raise the temperature of a liter of water one degree centigrade at sea level. In nutrition terms, the word calorie is commonly used to refer to a unit of food energy.