20 Examples of Heat and Temperature

The concepts of heat and temperature are closely related, since heat is the perception of a living being of an elevated temperature, while temperature is a physical quantity that reflects the amount of heat. For example: a stove, the burning of calories when doing physical exercise, the water when it boils when exceeding 100 ° C.

Heat is all produced energy by the movement of the molecules in a certain substance, while temperature is a measure of average molecular energy.

The heat depends on the velocity to which the particles move. The quantity, size and number of particles also influence it. The temperature does not depend on these variables.

Heat increases or decreases the temperature. Adding heat increases the temperature; when removing heat, it decreases.
Heat is energy, while temperature is a measure of it.

Let's go to an example:

The temperature of coffee in a cup can be the same as the temperature of coffee in a 5-liter jug; however, there will be more heat in the jug, because with more liquid, there will be more total thermal energy.

Measurement units

Heat enters a body in the process known as heating, and the unit of measurement that refers to the amount of thermal energy necessary for the transfer is called calories, and represents an energy quantity. Matter necessarily has the property of heat, since it has to do with the movement of the particles inside it.

So, the unit of measure of heat represents the amount of energy that is needed for the transfer from one unit to another, and is the calorie, or Joules: a calorie represents 4.184 Joules.

Temperature is represented by more frequent units of measurement, which also quantify the activity of molecules inside matter. The temperature indicators give rise to different particularities of matter, such as the condition, the solubility and volume.

Regarding the state, we can say that there is a certain level of temperature (different depending on the substance), that once exceeded, the body stops being solid and becomes liquid, and another temperature level that once exceeded, stops being liquid and becomes gaseous.

The most common units of measurement for temperature are:

Body temperature

Temperature is a very important element for the body, since the vital mechanism of homeostasis that people have is what leads to the maintenance of relative constancy in terms of temperature. Very sudden fluctuations in body temperature can lead to very serious problems, and even death.

The body temperature The normal one that is generally accepted is 37 ° C, but with a certain range between 36.1 ° C and 37.2 ° C. Above that temperature, it will be said that the person has a low-grade fever or fever.

Examples of temperature and heat

Here are some examples of heat and temperature in different circumstances:

1. The emission of heat produced by a bulb.
2. The process of heating a liquid, whereby the hot part moves up and the cold part down.
3. The separation of the contained molecules to a unit mass, and then the change from the liquid phase to the vapor phase when the heat of vaporization.
4. The waters of the surface of the sea, which receive radiation from the sun.
5. Touch a spoon that was in a glass of very hot milk, and consequently it will also be hot.
6. The heat received by a person who is cooking, even though they are not actually in the place where the heat is produced
7. The doctor, who when he controls a patient takes his temperature.
8. The melting of a unit mass of a solid substance, when the body went through the heat of fusion.
9. Physical exercise, which allows you to burn calories.
10. Heat expelled by a running engine.
11. The water when it boils, because it exceeded 100 ° C.
12. In solids with a rod, the heat spreads to the rod.
13. A stove.
14. The cure point of refractory materials, 500 ° C
15. The process of heating in a pan, where the heat flow spreads to the handle.
16. The dehydration point of metal parts, 250 ° C.
17. The ice-making process, called solidification of water, where the temperature becomes less than 0 ° C.
18. The heat energy in a vacuum, which is propagated by radiation.
19. The refrigerant in the refrigerator.
20. The light that comes to us from the sun, which carries energy through the radiation.

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