Question

how is the calorie related to the joule? what is the kcal used for?​

Answer 1

Explanation:

• Calorie/kcal = 4.2 kilojoules.

Where, a calorie is the unit of energy. Calorie or kilocalorie is the unit of energy = 1000 calories. Joule is the unit of energy.

Answer 2

Explanation:

EXPERT VERIFIED ANSWER

the calorie was originally defined as a amount

of heat required at the pressure of 1 standard

atmosphere to raise the temperature of 1 gram

water 1 degree celcius since 1925 this calorie

has been defined in the terms of joule the

defination since 1948 being that 1 calorie is

equals to approximately 4.2 joule