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Absolute Temperature, Relative Humidity, Temperature, Critical Temperature, Critical Pressure
Jan 05, 2017

The statistical average of temperature is molecular thermal motion of matter. The temperature of the gas is generated by thermal motion of gas molecules. Gases commonly used temperature units degrees Celsius (℃), water freezes at 0 degrees Celsius. Physics often use absolute temperature, with a "k". Absolute temperature-273 ℃ as zero. The relationship is T=t+273 of the Celsius and Kelvin. In addition United Kingdom scientists often use "Fahrenheit" symbol oF.

Because any gas can be liquefied under a bit of pressure and temperature, the higher the temperature liquefied need higher pressure, but when the temperature exceeds a certain value, even in how much pressure will not increase liquefaction, this temperature is called the critical temperature, minimum pressure at this temperature is called the critical pressure.

Refers to the moisture in the air never saturated steam temperature of saturated steam, when unsaturated water vapour becomes water vapor saturation, and appears very fine dew, dew occurs when the temperature is called the "dew point." Dew point and pressure, and atmospheric pressure dew point (pressure dew point) and the dew point under pressure. Atmospheric pressure dew point refers to the atmospheric pressure water condensation temperature, dew point under pressure is the pressure of the water condensation temperature, there are conversion (conversion tables available), such as pressure 0.7Mpa pressure dew point is 5 ℃, the corresponding atmospheric pressure (0.101Mpa) the dew point is-20 degrees centigrade. In the gas industry in the absence of special instructions, and dew point are referred to as atmospheric pressure dew point. Vaporization is the process of material from a liquid into a gas, it includes evaporation and boiling. Condensation is the process of a gas into a liquid.