fugacity
/fju:'gæsiti/
Học thuậtThân thiện
Definition
- Noun:
- The tendency of a gas to expand or escape: In physics and thermodynamics, "fugacity" is a measure of the escaping tendency of a gas from a phase, or its effective partial pressure.
- The lack of enduring qualities; transience: Used chiefly in a literary or philosophical context to describe the fleeting, ephemeral nature of something, particularly plant parts or life.
Examples of Usage
- Scientific Context (Thermodynamics):
- The fugacity of the vapor must be calculated to model the system accurately.
- At high pressures, the fugacity coefficient corrects for the non-ideal behavior of the gas.
- Literary/General Context (Transience):
- The poet reflected on the fugacity of autumn leaves.
- His work explores the fugacity of human emotions and experiences.
Advanced Usage
- "Fugacity coefficient": A dimensionless factor used in thermodynamics to relate the fugacity of a real gas to its pressure.
- The engineer used the fugacity coefficient to adjust the ideal gas law for their calculations.
- Conceptual use to describe ephemeral phenomena:
- Artists are often captivated by the fugacity of light at dusk.
Variants and Related Words
- Fugacious (adj): Fleeting, transient; lasting for a short time.
- The fugacious beauty of cherry blossoms is celebrated in many cultures.
- Fugitive (adj/n): Fleeing, escaping; or a person who flees. Shares the Latin root (to flee).
- The fugitive was captured after a long search. (n)
- She caught only a fugitive glimpse of the bird. (adj)
Synonyms
- For "tendency to escape": Escapement, volatility (in a technical sense).
- For "lack of endurance": Transience, ephemerality, fleetingness, evanescence, impermanence.
Related Phrases/Idioms
Note: "Fugacity" itself is not commonly used in idiomatic phrases. Its related adjective, "fugacious," might appear in more literary contexts. - "Fugacious as a dream": A literary comparison highlighting something's brief, insubstantial nature. - His happiness was fugacious as a dream, vanishing by morning.
Noun
- the lack of enduring qualities (used chiefly of plant parts)
- the tendency of a gas to expand or escape