Koppes

Kopp s rule Kosher glycerin Kotulskite Kovar... 

J. F. Kopp and R. C. Kroner, Trace Metals in Waters of the United States U.S. Dept, of the Interior, FWPCA, Cincinnati, Ohio, 1970, p. 8. 

A relatively simple example of a group contribution technique is the method for estimating Hquid and soHd heat capacities (159). This method is a modification of Kopp s rule (160,161) which was originally proposed in 1864. Kopp s rule states that, at room temperature, the heat capacity of a soHd compound is approximately equal to a stoichiometric summation of the heat capacities of its atoms (elements). The Hurst-Harrison modified equation is as follows ... 

There are no reliable prediction methods for solid heat capacity as a function of temperature. However, the atomic element contribution method of Hurst and Harrison,which is a modification of Kopp s Rule, provides estimations at 298.15 K and is easy to use ... 

The foregoing designs were discussed as ring expansion joints by Kopp and Sayre, Expansion Joints for Heat Exchangers (ASME Misc. Pap., vol. 6, no. 211). All are statically indeterminate but are subjected to analysis by introducing various simplifying assumptions. Some joints in current industrial use are of lighter wall constniction than is indicated by the method of this paper. 

The law of Dulong atid Petit was extended to molecular substances by Neumann and Kopp, who suggested drat die heat capacity of a compound containing n atoms per molecule would be given by... 

As a further approximation, it may be assumed drat dre elements conform to Neumann and Kopp s rule that dre heat capacities of compounds and elements are about 25Jgatom Consequently the htral temperature, 7j, which is achieved at the reaction front is given by... 

A useful approximation to estimate the possibility of a particular reaction which depends on internal heat generation to produce the products in the proper state for separation is to ignore the heat losses from die reactor, and assumes an average heat capacity calculated from die Neumann-Kopp law... 

Aliphatic Ruororutro Compounds Adolph, H G, Koppes, W M Ntiro Compd 367-605 597 o... 

Va, Vb = molecular volumes of gases, obtained by Kopp s law of additive volumes, cm /gm mol at normal boiling point. See Table 9-44. 

KopF75 Kopp, F. O. die Ermittlung selbstanpressungsfahiger Zwischenr de-Anordnung fiir Reibradergetreibe mit Hilfe von Graphen. Mechanism and Machine Theory 10 (1975) 521-529. 

The deviation of the heat capacity of a solid solution from the heat capacity calculated by the additivity hypothesis (Kopp-Neumann rule), a quantity of importance for the evaluation of the... 

Tobler I, Kopp C, Deboer T et al (2001) Diazepam-induced changes in sleep role of the al GABAa receptor subtype. Proc Natl Acad Sci USA 98 6464 6469... 

Ghosh S, May M, Kopp EB (1998) NF-kB and Rel proteins evolutionarily conserved mediators of immune responses. Annu Rev Immunol 16 225—260... 

The researches of F. Neumann (1831), Regnault (1840), and H. Kopp (1864), indicated that solid elements preserve unchanged their atomic heats when they unite to form solid compounds. Thus, the product molecular weight) X s )ecific heat) = (molecular heat) is composed additively of the atomic heats MC = niaiCi + h2 2c2 + n t s + (9)... 

According to Kopp, the curve is really continuous Pettersson and later workers consider that this is the case only in presence of impurities. 

Mass, Specific, of Constituents of Smokeless Propellant. Literature data on the specific mass of over 100 compds are given in Ref. Kopp s additive rule applies with an error generally less than 1%, eg, 1/d — 2 (nj/pj), where nj is % of constituent, pj is specific mass of constituent, and d is specific mass of propellant Ref P. Tavernier, MP 30, 253-96 (1957) CA 53, 1715-16 (1959)... 

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