|
The Online Chemical Glossary
Chemicals | Articles | Resources | Periodic Table
|
Browse |
651 Chemical Entries |
|
|
|
Absolute Zero |
The zero point on the absolute temperature scale, -273.15°C or 0 K, theoretically, the temperature at which molecular motion ceases. The concept of an absolute zero temperature was first deduced from experiments with gases. When a fixed volume of gas is cooled, its pressure decreases with its temperature.
Absolute zero can't be reached through experiments, although it can be closely approached. According to the third law of thermodynamics the entropy of a pure crystal is zero at absolute zero temperature. | | Click here for a printable version of Absolute Zero |
|
Browse Chemicals...
Search
|
|
WARNING: Don't be careless! Treat all chemicals with respect. Some chemicals can injure or even kill if they are not handled or stored properly.
|
| Copyright 2004-2008, AllChemicals.info | Privacy Policy |