Dalton's law
- noun
- /ˈdɔltənz lɔ/
- Specialized
:
ley de Dalton
- In chemistry class, we used Dalton's law to calculate the pressure contribution of each gas.
Examples
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The scientist explained Dalton's law, which states that the pressure of a gas mixture equals the sum of the separate pressures of each gas.
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According to Dalton's law, the total pressure is the sum of partial pressures.
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According to Dalton's law, the total pressure in the container is 5 atmospheres.
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The engineer applied Dalton's law to determine the oxygen level in the air sample.
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Can you explain how Dalton's law applies to gas mixtures?
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In our physics lesson, we learned that Dalton's law illustrates how the pressures of individual gases add up to the total pressure in a mixture.
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During the lab experiment, we used Dalton's law to find out the total pressure created by the different gases present.
Synonyms
Total pressure of a gas mixture equals sum of pressures each gas would have alone under the same conditions
In a gas mixture, total pressure equals the sum of pressures each gas would make alone
Surface Forms
Morphology
Dalton's + law
The form "Dalton's law" is compositionally predictable as a law named after a person (Dalton) because of the possessive + law pattern, so learners will infer it denotes some scientific rule. However, the specific chemical content (ratios of combining masses) is technical and cannot be derived from the constituents alone, so knowledge of the proper name or domain knowledge is required.
Etymology
Dalton's law comes from scientist John Dalton imagining different gases in one container, each pushing the walls on its own. He realised the total 'pressure' is just the sum of each gas's own push, which is why the law says the total pressure equals the sum of the partial pressures.
