Question

Define one calorie please for quickly answer​

Answer 1

• 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.
• calorie. [ kăl′ə-rē ] A unit of energy equal to the amount of heat needed to raise the temperature of one gram of water by one degree Celsius. One calorie is equivalent to 4.1868 joules.

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Answer 2

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.