law of definite proportions
Noun 1. (chemistry) law stating that every pure substance always contains the same elements combined in the same proportions by weight (synonym) law of constant proportion (hypernym) law, law of nature (classification) chemistry, chemical science | ||||
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Law of definite proportions definition was found in categories: Language, Idioms & Slang(1) Science & Technology(1) Encyclopedia(1)
Law of definite proportions Definition from Language, Idioms & Slang Dictionaries & Glossaries
| hEnglish - advanced version |
law of definite proportions
law of definite proportions
law \law\ (l&add;), n. [oe. lawe, laghe, as. lagu, from the root of e. lie: akin to os. lag, icel. l?g, sw. lag, dan. lov; cf. l. lex, e. legal. a law is that which is laid, set, or fixed; like statute, fr. l. statuere to make to stand. see lie to be prostrate.]
1. in general, a rule of being or of conduct, established by an authority able to enforce its will; a controlling regulation; the mode or order according to which an agent or a power acts.
note: a law may be universal or particular, written or unwritten, published or secret. from the nature of the highest laws a degree of permanency or stability is always implied; but the power which makes a law, or a superior power, may annul or change it. these are the statutes and judgments and law, which the lord made. xxvi. 46. the law of thy god, and the law of the king. --ezra vii. 26. as if they would confine the interminable who made our laws to bind us, not himself. his mind his kingdom, and his will his law.
2. in morals: the will of god as the rule for the disposition and conduct of all responsible beings toward him and toward each other; a rule of living, conformable to righteousness; the rule of action as obligatory on the conscience or moral nature.
3. the jewish or mosaic code, and that part of scripture where it is written, in distinction from the gospel; hence, also, the old testament. what things soever the law saith, it saith to them who are under the law but now the righteousness of god without the law is manifested, being witnessed by the law and the prophets. iii. 19, 21.
4. in human government: (a) an organic rule, as a constitution or charter, establishing and defining the conditions of the existence of a state or other organized community. (b) any edict, decree, order, ordinance, statute, resolution, judicial, decision, usage, etc., or recognized, and enforced, by the controlling authority.
5. in philosophy and physics: a rule of being, operation, or change, so certain and constant that it is conceived of as imposed by the will of god or by some controlling authority; as, the law of gravitation; the laws of motion; the law heredity; the laws of thought; the laws of cause and effect; law of self-preservation.
6. in matematics: the rule according to which anything, as the change of value of a variable, or the value of the terms of a series, proceeds; mode or order of sequence.
7. in arts, works, games, etc.: the rules of construction, or of procedure, conforming to the conditions of success; a principle, maxim; or usage; as, the laws of poetry, of architecture, of courtesy, or of whist.
8. collectively, the whole body of rules relating to one subject, or emanating from one source; -- including usually the writings pertaining to them, and judicial proceedings under them; as, divine law; english law; roman law; the law of real property; insurance law.
9. legal science; jurisprudence; the principles of equity; applied justice. reason is the life of the law; nay, the common law itself is nothing else but reason. oke. law is beneficence acting by rule. and sovereign law, that state's collected will o'er thrones and globes elate, sits empress, crowning good, repressing ill. w. jones.
10. trial by the laws of the land; judicial remedy; litigation; as, to go law. when every case in law is right. he found law dear and left it cheap.
11. an oath, as in the presence of a court. [obs.] see wager of law, under wager.
law of definite proportions
law \law\ (l&add;), n. [oe. lawe, laghe, as. lagu, from the root of e. lie: akin to os. lag, icel. l?g, sw. lag, dan. lov; cf. l. lex, e. legal. a law is that which is laid, set, or fixed; like statute, fr. l. statuere to make to stand. see lie to be prostrate.]
1. in general, a rule of being or of conduct, established by an authority able to enforce its will; a controlling regulation; the mode or order according to which an agent or a power acts.
note: a law may be universal or particular, written or unwritten, published or secret. from the nature of the highest laws a degree of permanency or stability is always implied; but the power which makes a law, or a superior power, may annul or change it. these are the statutes and judgments and law, which the lord made. xxvi. 46. the law of thy god, and the law of the king. --ezra vii. 26. as if they would confine the interminable who made our laws to bind us, not himself. his mind his kingdom, and his will his law.
2. in morals: the will of god as the rule for the disposition and conduct of all responsible beings toward him and toward each other; a rule of living, conformable to righteousness; the rule of action as obligatory on the conscience or moral nature.
3. the jewish or mosaic code, and that part of scripture where it is written, in distinction from the gospel; hence, also, the old testament. what things soever the law saith, it saith to them who are under the law but now the righteousness of god without the law is manifested, being witnessed by the law and the prophets. iii. 19, 21.
4. in human government: (a) an organic rule, as a constitution or charter, establishing and defining the conditions of the existence of a state or other organized community. (b) any edict, decree, order, ordinance, statute, resolution, judicial, decision, usage, etc., or recognized, and enforced, by the controlling authority.
5. in philosophy and physics: a rule of being, operation, or change, so certain and constant that it is conceived of as imposed by the will of god or by some controlling authority; as, the law of gravitation; the laws of motion; the law heredity; the laws of thought; the laws of cause and effect; law of self-preservation.
6. in matematics: the rule according to which anything, as the change of value of a variable, or the value of the terms of a series, proceeds; mode or order of sequence.
7. in arts, works, games, etc.: the rules of construction, or of procedure, conforming to the conditions of success; a principle, maxim; or usage; as, the laws of poetry, of architecture, of courtesy, or of whist.
8. collectively, the whole body of rules relating to one subject, or emanating from one source; -- including usually the writings pertaining to them, and judicial proceedings under them; as, divine law; english law; roman law; the law of real property; insurance law.
9. legal science; jurisprudence; the principles of equity; applied justice. reason is the life of the law; nay, the common law itself is nothing else but reason. oke. law is beneficence acting by rule. and sovereign law, that state's collected will o'er thrones and globes elate, sits empress, crowning good, repressing ill. w. jones.
10. trial by the laws of the land; judicial remedy; litigation; as, to go law. when every case in law is right. he found law dear and left it cheap.
11. an oath, as in the presence of a court. [obs.] see wager of law, under wager.
Law of definite proportions Definition from Science & Technology Dictionaries & Glossaries
| General Chemistry Glossary |
law of definite proportions
When two pure substances react to form a compound, they do so in a definite proportion by mass. For example, when water is formed from the reaction between hydrogen and oxygen, the 'definite proportion' is 1 g of H for every 8 g of O.
When two pure substances react to form a compound, they do so in a definite proportion by mass. For example, when water is formed from the reaction between hydrogen and oxygen, the 'definite proportion' is 1 g of H for every 8 g of O.
Law of definite proportions Definition from Encyclopedia Dictionaries & Glossaries
| Wikipedia English - The Free Encyclopedia |
Law of definite proportions
In chemistry, the law of definite proportions states that a chemical compound always contains exactly the same proportion of elements by mass. An equivalent statement is the law of constant composition, which states that all samples of a given chemical compound have the same elemental composition. For example, oxygen makes up 8/9 of the mass of any sample of pure water, while hydrogen makes up the remaining 1/9 of the mass. Along with the law of multiple proportions, the law of definite proportions forms the basis of stoichiometry.
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