Kj is equal to 0.2389 kcal, or cal for short. It is transliterated from English. It is defined as the heat required to raise 1 gram of water to 1 degree Celsius at 1 atmospheric pressure; Calorie is a kind of calorie unit, which is widely used in nutrition measurement and fitness manual. The international standard unit of energy is joule. As the legal unit of food calories, joules are widely used in Europe, while calories are used in the United States.

Heat and work are two different forms of energy transfer with the change of system state, and they are the measures of different forms of energy transfer. They are all related to the intermediate process of state change, so they are not functions of system state. Heat: 1 kcal = 4. 184 kj, 1 kj) =0.239 kj.

Kj related introduction:

"kj" is the abbreviation of English unit name "kilojoule", which stands for one thousand times of joule. Joule is a unit of energy in physics, which is used to express the energy or work that an object has. 1 joule is equal to1n m, or the work done by Newton's force to push an object along the distance of1m. ..

And "kilojoule (kJ)" is 1000 times of joule, which is usually used to represent the unit of measurement of heat energy, food energy and mechanical energy. In food nutrition, 1 kilojoule is equivalent to 239 kilocalories, which is one of the most commonly used energy units. For example, kilojoules and calories marked on food packaging are used to represent the energy and calories provided by this food.

Reference to the above content: Baidu Encyclopedia-Qianjiao