law of volumes
1
6.2
- noun
- Specialized
- According to the law of volumes, increasing the temperature of a gas at constant pressure decreases its density.
Examples
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The law of volumes explains why hot air balloons rise as the air inside them expands.
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Charles's experiments led to the formulation of the law of volumes in the study of gases.
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The law of volumes states that density decreases as temperature increases.
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According to the law of volumes, gases expand when heated.
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According to the law of volumes, increasing the temperature of a gas at constant pressure decreases its density.
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The law of volumes explains why hot air balloons rise as the air inside them expands.
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Charles's experiments led to the formulation of the law of volumes in the study of gases.
Synonyms
1
5.7
The volume of a gas at constant pressure increases as its temperature rises
Surface Forms
Morphology
The phrase is compositionally a 'law concerning volumes,' so a learner who knows 'law' and 'volume' will understand it refers to a scientific rule about volumes. However, the precise physical relation (the specific volume–temperature/density relationship and its identification with Charles's law) is domain-specific and not predictable from the words alone, making the transparency only partial.
Etymology
Law of volumes comes from a simple picture: when a gas is heated, its volume gets bigger and the gas becomes less dense, so a hot-air balloon 'rises'. So, the law means that at the same pressure, increasing temperature makes a gas's volume increase.