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Modern Thermodynamics for Chemists and Biochemists$
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Dennis Sherwood and Paul Dalby

Print publication date: 2018

Print ISBN-13: 9780198782957

Published to Oxford Scholarship Online: August 2018

DOI: 10.1093/oso/9780198782957.001.0001

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From ideal to real

From ideal to real

(p.655) 22 From ideal to real
Modern Thermodynamics for Chemists and Biochemists

Dennis Sherwood

Paul Dalby

Oxford University Press

Up to this point, the analyses throughout the book have related to ideal states – in particular, ideal gases and ideal solutions. This chapter shows how the theory developed for ideal states can be modified for real states, and introduces the concepts of fugacity, the fugacity coefficient, activity, the activity coefficient and ionic strength.

Keywords:   ideal gas, real gas, ideal solution, real solution, pressure, mole fraction, molality, molar concentration, fugacity, fugacity coefficient, activity, activity coefficient, ionic strength, Debye-Hückel law

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