Gay-Lussac's law
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Definition
- Noun:
- A physical law describing the relationship between the pressure and temperature of a gas: Gay-Lussac's law states that for a given mass and constant volume of an ideal gas, the pressure exerted on the sides of its container is directly proportional to its absolute temperature.
Usage
- This term is used specifically in the fields of physics and chemistry to describe a fundamental gas law.
- It is typically used in scientific explanations, textbooks, and calculations involving gas behavior.
Examples
- Noun:
- According to Gay-Lussac's law, if you heat a sealed container, the pressure inside will increase.
- To solve this problem, you need to apply both Boyle's law and Gay-Lussac's law.
Advanced Usage
- "To obey Gay-Lussac's law": Used to describe a gas that behaves ideally under the stated conditions.
- At moderate temperatures and pressures, many real gases approximately obey Gay-Lussac's law.
Variants and Related Words
- Pressure-temperature law: A common alternative name for Gay-Lussac's law.
- Amontons's law: Another name for the same principle, named after a different scientist.
- Ideal gas law: The more comprehensive law that combines Gay-Lussac's law with other gas laws (Boyle's law, Charles's law, and Avogadro's law).
Synonyms
- Pressure-temperature relationship: A descriptive synonym for the principle itself.
Notes on Meaning
- It is critical to note the specific conditions of this law: a constant volume and a constant amount of gas. The law is often summarized by the formula P/T = k, where P is pressure, T is absolute temperature, and k is a constant.
- This law is named after the French chemist Joseph Louis Gay-Lussac, who published it in the early 19th century.
Noun
- (physics) the density of an ideal gas at constant pressure varies inversely with the temperature