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Avogadro's law

Avogadro's law

6.0
Equal volumes of gases at the same temperature and pressure contain the same number of molecules
  • noun
  • /ˌævəˈɡɑːdroʊz lɔː/
  • Specialized
translation icon : ley de Avogadro
  • The principle of Avogadro's law explains why equal volumes of different gases have the same number of molecules under identical conditions.

Examples

  • According to Avogadro's law, equal volumes of gas contain an equal number of molecules at the same temperature and pressure.

  • In the chemistry lab, students used Avogadro's law to calculate the number of gas particles.

  • The discovery of Avogadro's law was a major milestone in understanding the behavior of gases.

  • According to Avogadro's law, gases behave similarly under the same conditions.

  • Did you learn about Avogadro's law in chemistry class?

  • The principle of Avogadro's law explains why equal volumes of different gases have the same number of molecules under identical conditions.

  • In the chemistry lab, students used Avogadro's law to calculate the number of gas particles.

Synonyms

Avogadro's hypothesis
vsAvogadro's law
  • Specialized
7.1

Equal volumes of different gases at the same temperature and pressure contain the same number of molecules

has the same scientific meaning but is named as an accepted formal statement

Surface Forms

Avogadro's law singular

Morphology

Avogadro's + law

This is an eponymous technical term: 'Avogadro's' is a proper name and carries no lexical information about gases or molecule counts, while 'law' only indicates a scientific principle. The specific content (equal volumes contain the same number of molecules) is specialized knowledge that cannot be derived from the constituent words, so a B1 learner would not be able to infer the meaning.

Etymology

Avogadro's law is named after the scientist Amedeo Avogadro, who pictured equal-size balloons of different gases at the same temperature and pressure and thought each would hold the same number of tiny beads, 'molecules'. So, Avogadro's law means that equal volumes of gas under the same conditions contain the 'same number of molecules'.