kinetic theory
Definition
- Noun:
- A theory in physics: "kinetic theory" is a scientific theory that explains the properties and behavior of gases. It proposes that a gas consists of a very large number of very small particles (atoms or molecules) that are in constant, random motion.
Usage Examples
- Noun:
- The kinetic theory explains the relationship between pressure, volume, and temperature in gases.
- According to the kinetic theory, the temperature of a gas is related to the average kinetic energy of its particles.
Advanced Usage
- "kinetic theory of gases": This is the full and most common name for the theory.
- The kinetic theory of gases provides a molecular explanation for Boyle's law.
- "kinetic theory of heat": A related concept explaining heat as the motion of particles.
- The kinetic theory of heat was a crucial development in thermodynamics.
Variants and Related Words
- Kinetic theory of matter: A broader theory extending the principles to all states of matter (solids, liquids, gases).
- The kinetic theory of matter states that all particles of matter are in constant motion.
- Kinetic energy (n): The energy possessed by an object due to its motion. This is a core concept within the kinetic theory.
- In the kinetic theory, the temperature is a measure of the average kinetic energy of the particles.
Synonyms
- Kinetic-molecular theory: A synonym, often used interchangeably.
- Particle theory of gases: A descriptive synonym focusing on the particulate nature of gases.
Related Phrases
- Postulates of the kinetic theory: Refers to the fundamental assumptions the theory is built upon, such as negligible particle volume and perfectly elastic collisions.
- One of the postulates of the kinetic theory is that gas particles exert no forces on each other except during collisions.
Noun
-
(physics) a theory that gases consist of small particles in random motion
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