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Temperature a scalar quantity defined as the amount of kinetic energy of a gaseous, liquid, or solid mass particles. The higher the speed of the particles, the higher it and vice versa.
Its measurement relates to the notion of cold (lower) and heat (higher), which can perceive instinctively.
And also, weather acts as a reference value to determine the human body’s normal heat, which use to estimate health states. Heat also use for chemical, industrial and metallurgical processes.
There are different types of scales to measure temperature. The most commons are:
The Celsius scale: It is also known as the “centigrade scale”, it is the most used along with the Fahrenheit scale. On this scale, the freezing point of water equals 0 ° C (zero degrees Celsius), and its boiling point is 100 ° C.
The Fahrenheit scale: It is the measure used in most English-speaking countries. On this scale, the freezing point of water occurs at 32 ° F (thirty-two degrees Fahrenheit) and its boiling point at 212 ° F.
The Kelvin scale: It is the measurement that usually uses in science and establishes “absolute zero” as the zero points, which means that the object does not give off any heat and is equivalent to -273.15 ° C (degrees centigrade).
The Rankine scale: It the commonly used measure in the United States for thermodynamic temperature measurement. And also, it defines by measuring degrees Fahrenheit above absolute zero, so it has no negative or sub-zero values.
Thermometric magnitudes measure it. That is, different units represent the temperature at different scales.
For this, a device called a “thermometer” use, of which several types depending on the phenomenon needs to measure, for example:
Dilation and Contraction
Variation of Electrical Resistance
Thermal Radiation Thermometer
There are different types of temperature and, therefore, they measure with other tools, such as:
The Dry Temperature
The Radiant Temperature
The Humid Temperature
Although heat and temperature are closely related concepts, they are not the same.
Some differences are:
It’s meaning: Heat is thermal energy that should understand as heat transfer, which occurs when there is a difference between two bodies.
This transfer always has one direction from the body with the highest temperature to the lowest temperature. On the other hand, the weather is a measure of the molecules’ average kinetic energy that make up matter.
Its symbol: Heat represents by the letter Q and the letter T.
Its effect: The transfer of heat to a body increases its. And also, it is the average kinetic energy of the particles in that body, which increases if heat gives to it.
Your transmission: Heat transmits from one substance to another and can spread by conduction, convection, or radiation. And also, depending on the type of heat propagation, it will be the temperature level reached.
Your object for measurement: Heat measure with a calorimeter, and it measures with a thermometer.
Your unit of measure: Heat measure in joules, calories, and kilocalories. It measures in degrees Kelvin (k), Celsius (C), or Fahrenheit (F).
Some examples of temperatures are:
It is related to the internal energy of thermodynamic systems, according to their particles’ movement. And also quantifies the activity of the molecules of the matter: the higher the sensible point, the higher it.
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