law of volumes
Học thuậtThân thiện
Definition
- Noun:
- (Physics) Charles's Law: The scientific principle stating that, for a fixed mass of an ideal gas held at a constant pressure, its volume is directly proportional to its absolute temperature. This means if the temperature increases, the volume increases proportionally, and vice versa.
Usage
- The law of volumes is a fundamental concept in thermodynamics and gas chemistry.
- It is used to predict and calculate how a gas will expand when heated or contract when cooled, provided the pressure does not change.
- This law is often introduced alongside Boyle's law to describe the behavior of ideal gases.
Examples
- Noun:
- According to the law of volumes, a hot air balloon rises because the air inside expands when heated.
- Engineers must account for the law of volumes when designing sealed systems that may experience temperature fluctuations.
- The experiment demonstrated the law of volumes by showing the linear relationship between the temperature and volume of the trapped gas.
Advanced Usage
- The law of volumes is mathematically expressed as V/T = k, where V is volume, T is absolute temperature (in Kelvins), and k is a constant.
- It is also commonly known as Charles's law, named after the scientist Jacques Charles.
- This law, combined with Boyle's law and Gay-Lussac's law, leads to the combined gas law and ultimately the ideal gas law.
Variants and Related Words
- Charles's law: The more common name for the law of volumes.
- Ideal gas law: The more comprehensive equation (PV = nRT) that describes the state of an ideal gas, incorporating the relationships described by Charles's, Boyle's, and Avogadro's laws.
- Boyle's law: The principle that the pressure and volume of a gas are inversely proportional at constant temperature.
Synonyms
- Charles's law
Noun
- (physics) the density of an ideal gas at constant pressure varies inversely with the temperature