The human body consumes energy all the time, and energy is provided by thermogenic nutrients in food. Nutrients that can produce calories in food are protein, fat, sugar and carbohydrate. They are oxidized to generate heat for the body to maintain life, grow and develop and exercise. When there is too much heat supply, the excess heat will be stored as fat. After a long time, the body will get fat.
Extended data:
Kcal, 1 kcal = 1 kcal.
1 kcal = 4. 184 kcal
1 calories: heat can make 1 water rise 1 degrees Celsius.
The relationship between heat energy and internal energy is just like the relationship between work and mechanical energy. Heat is a measure of the change of energy inside an object. If the thermal balance between the two areas has not been reached, the heat will be transferred to the other side with low temperature at the place with high temperature between them.
Any substance has a certain internal energy, which is related to the disorderly movement of atoms and molecules that make up the substance. When two substances with different temperatures are in thermal contact, they exchange internal energy until the temperature is the same, that is, they reach thermal equilibrium. Here, the energy transferred is equal to the heat exchanged.
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