The heat of rice is higher than that of corn, which is 346 calories per100g106g, and that of rice per100g. From the perspective of traditional Chinese medicine, rice has the effects of tonifying the middle energizer, strengthening the spleen, stimulating appetite and calming the nerves. It has a good conditioning effect on dizziness and headache caused by deficiency of qi and blood, epigastric pain caused by weakness of spleen and stomach, insomnia and dreaminess, and can also clear away heat and eliminate pathogens. From a nutritional point of view, rice is rich in carbohydrates and high in calories.

Heat refers to the thermal interaction between the system and the outside world when the change of system state comes from the destruction of thermal balance conditions, that is, when there is a temperature difference between the system and the outside world. As a result, energy is transferred from a high-temperature object to a low-temperature object, and the transferred energy is called heat.

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.

Thermal law

The zeroth law of thermodynamics: If each of the two thermodynamic systems is in thermal equilibrium with the third thermodynamic system, then they are also in thermal equilibrium with each other.

The first law of thermodynamics: a system includes energy transfer and transformation in any process, and its total energy value remains unchanged. That is the conservation of energy.

The second law of thermodynamics: heat can only be spontaneously transferred from a high-temperature object to a low-temperature object. The direction of heat transfer is opposite to that of temperature gradient. This is Clausius' statement, also known as the principle of entropy increase, which shows that the world will become more and more disorderly and chaotic.

The third law of thermodynamics: absolute zero cannot be achieved.

The action of heat

1, maintain the basic metabolism of the human body. Even if the body is in a state of complete rest, its internal physiological activities continue, so it needs heat at any time. This heat is needed for physiological activities in human body (such as heartbeat, breathing, gastrointestinal peristalsis, nervous system activities, etc.). ) Being in a state of complete rest is called basal metabolism. The heat required for basal metabolism is about per hour per kilogram of body weight 1 calorie. If you weigh 50 kg, the energy required for basal metabolism is about 1×50×24= 1200 kcal.

2. Keep your muscles active.

3. Keep your body temperature.

4. Special motivation of food. Food needs a certain amount of calories to digest, absorb and metabolize in the body.

5. The need for growth.