boyle's law
Học thuậtThân thiện
Definition
Noun: - A physical law in chemistry and physics: Boyle's law states that for a fixed amount of an ideal gas kept at a constant temperature, the pressure and volume are inversely proportional. This means if the volume increases, the pressure decreases, and vice versa.
Usage
- Boyle's law is used to describe and predict the behavior of gases under changing conditions of pressure and volume, provided the temperature and amount of gas remain constant.
- It is a fundamental principle in the study of gas laws and thermodynamics.
Examples
- In a scientific explanation:
- According to Boyle's law, compressing a gas into a smaller container will increase its pressure.
- In an educational context:
- The experiment demonstrated Boyle's law by showing how the pressure changed when the volume of the trapped air was altered.
Advanced Usage
- Mathematical formulation: The law is often expressed as ( P \propto \frac{1}{V} ) or ( PV = k ), where ( P ) is pressure, ( V ) is volume, and ( k ) is a constant for a given mass of gas at a constant temperature.
- Limitations: It is noted that Boyle's law is an idealization; real gases deviate from this behavior under high pressure or low temperature conditions.
Variants and Related Words
- Gas law: A broader term for the physical laws describing the behavior of gases, which includes Boyle's law, Charles's law, and Avogadro's law.
- Ideal gas law: A more comprehensive equation of state for an ideal gas, combining several simple gas laws, including Boyle's law.
Synonyms
- Mariotte's law: An alternative name for Boyle's law, commonly used in French and some other European contexts.
Noun
- the pressure of an ideal gas at constant temperature varies inversely with the volume