Question

1kg calorie is equal to 4.2 joule​

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.

Answer 2

Explanation:

1000 calories

1 Kilocalorie are 1000 calories, the amount of caloric energy needed to raise the mass of 1 kg of pure water by 1 ° C. According to the MHO, an average of 2000 kilocalories per day is needed for a human being, equivalent to about 2.3 kW / h of daily energy.