What is relative temperature? What is absolute temperature?

Relative temperature: Because absolute temperature cannot be done in real life.

So the general temperature is called the relative temperature.

The temperature in real life is humid air.

Absolute temperature: It describes the real temperature of the objective world, and it is also the basis for formulating international protocol temperature scales, which is a standard.

Methods for determining and quantifying temperature.

Kelvin. It is the thermodynamic temperature named after the surname of the British scientist Kelvin.

Unit. In 1848, the British scientist William Thomson.

The theory of "thermodynamic temperature" was first proposed, and it was soon recognized internationally. In 1854, William Thomson proposed that the unit of thermodynamic temperature could be determined by selecting a fixed point. [1]

Back in 1787 the French physicist Charles.

It is found that when the pressure is constant, the increase in the volume (expansion rate) of a certain amount of gas is a fixed value for every 1 increase in temperature, and the volume expansion is linearly related to the temperature. The initial experiments yielded a value of 1 269 of the volume of the gas at 0, which was later revised by a number of experiments, several decades later, notably in 1802 by the work of the Frenchman Guy Lussac, who finally determined the value of 1. The above relationship between the volume of the gas and the temperature is expressed by a formula in the form of the following:

v=v0（1+t/

where v is the temperature in Celsius.

is the volume of gas at t. If t+ is defined then 0 +, the above relationship can be expressed by a simpler formula: v t=v0 t0, and further, v1 t1=v0 t0, v2 t2=v0 t0, there is naturally v1 t1=v2 t2, that is, a certain amount of gas at any temperature, at a certain pressure, the volume v of the gas is proportional to the temperature expressed by t as the temperature scale.

It's called Charlie-Guy Lussac's law. In fact, this relationship only applies to ideal gases.

For this reason, T was first called the ideal gas temperature (temperature scale) and also the absolute temperature (temperature scale). After the thermodynamic formation, it was found that the temperature scale had a deeper physical significance, especially when Clausius and Kelvin demonstrated absolute zero.

If it is unattainable, it is renamed thermodynamic temperature (temperature scale) and uses the first letter K of Kelvin as its unit. The temperature of an object is a macroscopic representation of the intensity of the motion of the large number of particles that make up the object (thermal motion).

The expression is: t=t+273

t is the thermodynamic temperature scale.

t is the Celsius temperature scale.

Here's how it came from:

The pressure value of a gas of a certain mass with the same volume for every increase (or decrease) in temperature 1 is equal to its pressure at 0 273 is expressed by the formula as.

p=p0(1+t/273)

where p0 is the pressure of the gas at 0.

Later, Kelvin introduced the concept of "absolute zero," which means that when the temperature reaches 0 K, which is -273, the gas stops moving.

Later it was generalized to t=t+273

Putting aside those academic terms, the landlord will understand it simply, let's talk about absolute humidity first.

The so-called absolute humidity is the maximum amount of water that can be contained in the air at a certain temperature and pressure, in other words, an atmospheric pressure, at 25 degrees Celsius, the air can only hold a gram of water at most, then a is the absolute humidity of the air in this state.

However, in the space we live in, the humidity is often not saturated, which gives birth to the concept of relative humidity, that is, the ratio of the actual amount of water contained in the air to the maximum water content at a certain temperature and pressure, simply put, the same atmospheric pressure, 25 degrees Celsius when the air actually contains b grams of water, then the relative humidity is b a 100%, the concept of relative humidity is mainly used to describe the degree of air humidity and human comfort and a concept that is introduced.

I hope I can understand when I say this, good luck!

The relative density should be the ratio of the density of matter to water! Absolute temperature Thermodynamic temperature is also known as Kelvin temperature, or absolute temperature, and the symbol is k. The temperature at absolute zero is defined as 0k.

The temperature of the ice-water mixture is Celsius, which is defined as:

I'm also looking for answers.

First of all, let's talk about absolute temperature, thermodynamic temperature, also known as absolute temperature, is one of the important parameters in thermodynamics and statistical physics. It describes the real temperature of the objective world, and is also the basis for customizing the international protocol temperature scale, which is a method of calibrating and quantifying the temperature. (Spit :.)

Horse eggs, labor refrigeration work (important things at work work are said 3 times) only Fahrenheit and Celsius are used, what the hell is this thermodynamic Kehrner. ）

Then there is the relative temperature: the absolute temperature cannot be done in real life, so the general temperature is called the relative temperature. The temperature in real life is humid air.

So the question is: what is the relationship between absolute temperature and relative temperature?

One is the thermodynamic temperature scale and the other is the moist air temperature.

Why do I feel like I've been fooled? One is a unit of quantitation and the other is the temperature of the state of matter. I don't think they have a special relationship. Is there a great god to talk about? The interviewer asks this kind of question, and he doesn't know how to use it.

The absolute temperature is the thermodynamic temperature, the unit is "Kelvin", the English is "Kelvin" for short, and the international code is "K", but "°" is not added to indicate the temperature. Kelvin was named in honor of the English physicist Lord Kelvin.

With absolute zero (0k) as the minimum temperature, the temperature of the three-phase point of water is specified as , and the open is defined as 1 of the thermodynamic temperature of the three-phase point of water.

Celsius is a special name for the temperature of Celsius instead of open. Whereas, the temperature of the triple point of water is Celsius. Therefore, the relationship between the thermodynamic temperature t and the Celsius temperature t that people are accustomed to is as follows:

t(k) = the unit open (k) of the specified thermodynamic temperature is exactly the same as the average of the unit of temperature in Celsius ( ). So t k = t.

There is no strict definition of relative temperature, and the comparative temperature with the temperature of other things is generally called relative temperature, such as the specific heat capacity of seawater is greater than that of land, so the temperature of seawater in winter is higher than that of land; Summer temperatures are lower than on land.

The magnitude of these two temperatures varies equally in each degree, but the absolute temperature is 0 degrees Celsius and is called absolute zero.

This zero degree is theoretical. At this temperature, the microscopic particles stop moving. In other words, there is no lower temperature than absolute zero. In conversion, absolute temperature = Celsius temperature +, absolute temperature is also called Kelvin temperature, which is represented by the letter k.

Celsius** was proposed by the Swedish astronomer Anders Celseus in 1742 and has since been improved. The meaning of Celsius refers to the fact that at a standard pressure of 1 atmosphere, a pure mixture of ice water has a temperature of 0 degrees Celsius and a boiling point of water at 100 degrees Celsius.

The Celsius scale (C) is a unit of measurement for temperature, denoted by the symbol °C, and is one of the most widely used temperature scales in the world. Celsius is now part of the International System of Units.

In the 18th century, when the Swedish astronomer Anders Celsius (1701-1744) created the temperature scale in 1742, in order to avoid negative values when measuring low temperatures, it was stipulated that boiling water should be recorded as 100 degrees at 1 standard atmosphere, and ice water should be recorded as 0 degrees, and there was no °C symbol at that time. This regulation is just the opposite of the current Celsius temperature scale, and people feel very inconvenient in use.

But this statement was not accepted by the Royal Swedish Academy of Sciences, and this temperature scale was once called the Celsius temperature scale (also known as the percent temperature scale). Now for calculation convenience, 1k = 1 °C. In order to commemorate and recognize Anders Cherseus's contributions, the 10th International Congress of Weights and Measures in 1954 specially named this temperature scale "Celsius temperature scale", after the first letter of his surname"c"to represent.

Celsius t(c) and absolute t(k): t(k) = t(c) + Celsius and Fahrenheit t(f): t(c) = (5 9) [t(f)-32]

It is a temperature scale founded by Warren Heitter in Germany in 1714. It uses mercury as a temperature measuring substance, and the melting point of water is 32 degrees, the boiling point is 212 degrees, and the middle is divided into 180 degrees, which is represented by .

Celsius temperature scale: It was created by the Swede Thermosius in 1742. Mercury is used as a temperature measuring substance, and the freezing point of the water is 100 degrees, and the boiling point is 0 degrees.

Later, his assistant changed the freezing point of water to 0 degrees and the boiling point to 100 degrees. The middle is divided into 100 points according to the expansion of the mercury column, and each is divided into 1 degree, which is represented by .

Kelvin temperature: A thermodynamic temperature scale established by the British physicist Kelvin in 1948 that has nothing to do with any physical properties, also known as the absolute temperature scale, is expressed in t, and the temperature unit is expressed in k. The absolute temperature is 0 degrees, which is equal to Celsius, which is the temperature limit expressed in Celsius.

The absolute temperature is the starting point for calculating the Kelvin temperature scale, and zero degrees Celsius is the starting point for calculating the temperature in Celsius.

These are two different temperature measurement systems.

The temperature of an object can be expressed by these two systems, and the formula is:

Absolute temperature value = Celsius temperature value +

It seems that the absolute temperature t = Celsius temperature t + 273 degrees.

The absolute unit of temperature is expressed in k.

0 degrees of absolute temperature is equal to 273 degrees Celsius.

Absolute temperature.

Absolute temperature Thermodynamic temperature is also known as Kelvin temperature, or absolute temperature, and the symbol is k.

The temperature at absolute zero is defined as 0k. The triple point of water, i.e., the temperature at which water in a liquid, solid, gaseous state exists at the same time, is defined as:

The temperature at which water freezes at standard atmospheric pressure, i.e., Celsius 0, or Fahrenheit 32, is equivalent to the thermodynamic temperature.

1. Relative temperature: Generally speaking, the comparative temperature with the temperature of other things is called relative temperature; For example, the specific heat capacity of seawater is greater than that of land, so the temperature of seawater in winter is higher than that of land, and the temperature of summer is lower than that of land;

2. Absolute temperature: that is, the mechanical temperature of Rehengshan, the unit is "Kelvin", referred to as "Kai", and the international code is "K", but "and grinding °" is not added to represent the temperature; Kelvin was named in honor of the English physicist Lord Kelvin. With absolute zero as the minimum temperature, the temperature of the three-phase point of water is specified as k, and the temperature of the three-phase point of water is defined as the thermodynamic temperature of the water. Celsius is a special name that denotes the temperature of Celsius instead of open, and the temperature of the three-phase point of water is Celsius; The unit open of the specified thermodynamic temperature is exactly the same as the average of the unit degrees Celsius of the temperature of the Celsius.

1. Relative temperature: Generally, the comparative temperature with the temperature of other things is called relative temperature; For example, the specific heat capacity of seawater is greater than that of the land, so the temperature of seawater in winter is higher than that of land, and that of summer is lower than that of land;

2. Absolute temperature: that is, thermodynamic temperature, the single auspicious macro is "Kelvin", referred to as "open", the international code "k", but not add "°" to indicate the temperature; Kelvin was named in honor of the English physicist Lord Kelvin. With absolute zero as the minimum temperature, the temperature of the three-phase point of water is specified as k, and the temperature of the three-phase point of water is defined as the thermodynamic temperature of the water. Celsius is a special name that denotes the temperature of Celsius instead of open, and the temperature of the three-phase point of water is Celsius; The unit open of the specified thermodynamic temperature is exactly the same as the average of the unit degrees Celsius of the temperature of the Celsius.

Absolute temperature generally refers to the thermodynamic temperature, also known as the Kelvin temperature scale, the absolute temperature scale, referred to as the Kelvin temperature scale, is the international system of units of the seven basic physical quantities of the finger closed one, the unit is Kelvin, referred to as open, which describes the real temperature of the objective world, but also the basis for formulating the international agreement temperature scale, is a method of calibrating and quantifying temperature.

Absolute temperature is one of the important crack-only parameters in thermodynamics and statistical physics. Generally speaking, the absolute zero refers to 0K, which corresponds to minus degrees Celsius.

Temperature in classical thermodynamics does not have the concept of a limiting high temperature, only a theoretical minimum temperature of "absolute zero". The third law of thermodynamics states that "absolute zero" cannot be achieved in a finite number of steps. In statistical thermodynamics, temperature is given a new physical concept to describe the intensity, properties, and thermodynamic quantities of the rate of change of the system with the degree of chaos in the system.