NIOSHTIC-2 Publications Search

Water and Magmas: Clarification of a Controversy on Applications of the Gibbs-duhem Equation.

Authors
Gokcen-NA
Source
Geochem Cosmochim Acta 43:637-641
Link
NIOSHTIC No.
10009841
Abstract
Contrary to the claims of others, it is shown mathematically that if the activity of water in ternary water-magma (aluminosilicate) systems is constant or varies only with the mole fraction of water, it is not necessary that the binary magmas form ideal solutions. A molecular viewpoint is presented to support this argument. The properties of analytical equations capable of representing the activity coefficients of usual and unusual systems are discussed. The correct form of the Gibbs-Duhem equation for dissociative dissolution processes is presented.
Publication Date
19790101
Document Type
OP;
Fiscal Year
1979
Identifying No.
OP 34-79
NIOSH Division
ALRC;
Source Name
Geochem. Cosmochim. Acta, V. 43, PP. 637-641
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division