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Cato Maximilian Guldberg

(1836–1902) Norwegian chemist Guldberg was educated at the university in his native city of Christiania (now Oslo) and started his career teaching at the Royal Military School ...

Guldberg, Cato Maximilian

Guldberg, Cato Maximilian   Quick reference

A Dictionary of Scientists

Reference type:
Subject Reference
Current Version:
2003
Subject:
Science and technology
Length:
236 words

..., Cato Maximilian (1836–1902) Norwegian chemist Guldberg was educated at the university in his native city of Christiania (now Oslo) and started his career teaching at the Royal Military School there in 1860 . He was appointed to the chair of applied mathematics at the university in 1869 . Guldberg's main work was on chemical thermodynamics. In 1863 he formulated the law of mass action in collaboration with his brother-in-law, the Norwegian chemist Peter Waage ( 1833–1900 ). The law states that the rate of a chemical change depends on the...

Guldberg, Cato Maximilian

Guldberg, Cato Maximilian (1836–1902)   Reference library

The New Oxford Dictionary for Scientific Writers and Editors (2 ed.)

Reference type:
Subject Reference
Current Version:
2009

..., Cato Maximilian ( 1836–1902 ) Norwegian chemist . Guldberg–Waage theory (en...

Cato Maximilian Guldberg

Cato Maximilian Guldberg  

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Overview Page
(1836–1902) Norwegian chemistGuldberg was educated at the university in his native city of Christiania (now Oslo) and started his career teaching at the Royal Military School there in 1860. He was ...
Peter Waage

Peter Waage  

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Overview Page
(1833–1900) Norwegian chemist. See Guldberg, Cato Maximilian.
Guldberg rule

Guldberg rule   Quick reference

A Dictionary of Chemical Engineering

Reference type:
Subject Reference
Current Version:
2014

...Guldberg rule A rule stating that the ratio of the normal boiling point to the critical temperature of a substance is equal to a value of 2/3. It was proposed in 1890 by Norwegian chemist Cato Maximilian Guldberg ( 1836–1902 ). For simple molecules containing one or two atoms and discounting hydrogen atoms present, the ratio is 0.567, while for other inorganic molecules the ratio is 0.635. ...

mass action

mass action   Quick reference

A Dictionary of Chemistry (7 ed.)

Reference type:
Subject Reference
Current Version:
2016
Subject:
Science and technology, Chemistry
Length:
121 words
Illustration(s):
2

...temperature is proportional to the product of the active masses of the reactants. The active mass of a reactant is taken to be its molar concentration. For example, for a reaction The rate is given by where k is the rate constant . The principle was introduced by Cato Maximilian Guldberg ( 1836–1902 ) and Peter Waage ( 1833–1900 ) in 1863 . It is strictly correct only for ideal gases. In real cases activities can be used. See also equilibrium constant...

equilibrium constant

equilibrium constant   Quick reference

A Dictionary of Chemistry (7 ed.)

Reference type:
Subject Reference
Current Version:
2016
Subject:
Science and technology, Chemistry
Length:
503 words
Illustration(s):
5

... c indicates concentrations have been used). Note that, by convention, the products on the right-hand side of the reaction are used on the top line of the expression for equilibrium constant. This form of the equilibrium constant was originally introduced in 1867 by Cato Maximilian Guldberg and Peter Waage using the law of mass action . They derived the expression by taking the rate of the forward reaction and that of the back reaction Since the two rates are equal at equilibrium, the equilibrium constant K c is the ratio of the rate constants k f...

Transmission Dynamics

Transmission Dynamics   Reference library

Encyclopedia of Evolution

Reference type:
Subject Reference
Current Version:
2005

...in order to develop an understanding of the resulting dynamic behavior. Central to most mathematical models is the assumption of the so-called mass-action principle, a concept that was originally developed in chemical kinetics around 1870 by the Norwegian scientists Cato Maximilian Guldberg and Peter Waage , but was first applied to infectious disease dynamics by the English scientist W. H. Hamer in 1906 . The mass-action principle postulates that the rate of new infection of susceptible hosts is proportional to the product of the densities of the...

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