Originally published in 1949, as part of the Cambridge Monographs on Physics series, this book acts as a response to J. K. Roberts' 1939 work Some Problems in Adsorption. A. R. Miller applies newer statistical methods of analysis to update Roberts' explanations and take previously overlooked elements into consideration. This volume will be of value to anyone with an interest in adsorption and the history of science.

AUTHOR'S PREFACE ix

CHAPTER I Experimental Methods

1·1. General introduction, p. 1.

1·2. The measurement of accommodation coefficients, p. 7.

1·3. The measurement of the hent of adsorption, p. 13.

1·4. The amunt of hydrogen adsorbed on tungstcn, p. 16.

1·5. Variation of heat of adsorption of hydrogen on tungsten with fraction of surface covered, p. 18.

CHAPTER 2 The Theory of Heat of Adsorption with Interaction between Adsorbed Particles

2·1. Langmuir's theory of adsorption on definite sites, p. 20.

2·2. Mobile and immobile adsorbed films, p. 21.

2·3. The equilibrium distribution f particles on the surface in a m bile film, p. 24.

2·4. The variation of heat of adsorption with fraction of sites ccupied for simple adsorption into ambile film, p. 27.

2·5. Variation of heat of adsorption with fraction f sites ccupied in a mobile film for adsorption with dissociation, p. 29.

2·6. The theory of heat of adsorption for an immbile film, p. 30

CHAPTER 3 Variation of the Potential Energy over the Surface

3·1. Introduction, p. 38.

3·2. Physical model, p. 40.

3·3. Variation of the heat of adsorption with the fraction of the surface c vered for ambile film, p. 44.

3·4. The relation between the heat of ads rption of an imm bile film and the fraction of the surface covered by it, p. 47.

3·5. Application to experiment, p. 48.

3·6. States of minimum energy, p. 51.

CHAPTER 4 The Process of the Formation of Adsorbed Films

4·1. The kinetics of the formation of 1mmobile adsorbed films with dissociation, p. 55.

4·2. Some properties of oxygen films, p. 59.

4·3. The kinetics of the formation f mobile films with dissociation, p. 61.

CHAPTER 5 Evaporation Processes and the Production of Atomic Hydrogen

5·1. The production of atomic hyd rogen by hot tungsten, p. 65.

5·2. Groups of processes occurring at the surface, p. 66.

5·3. Fundamental assumption，p. 67.

5·4. Theory of equilibrium and of production of atomic hydrogen ineluding effect of interactions, p. 70.

5·5. True and apparent heats of evaporaf adsorbed films, p. 76.

5·6. The adsorption isotherm, p. 82.

CHAPTER 6 Some Other Types of Adsorption

6·1. The distribution of particles in a mobile film when each adsorbed particle precludes occupation of neighbouring sites, p. 85.

6·2. The kinetics of adsorption and evaporation in a mobile film on the IIO plane of tungsten when each adsrbed particle precludes occupation of neighbouring sites, p. 89.

6·3. Properties film on tunobile films on tungsten in which each adsorbed particle

precludes ccupation f neighbouring sites, p. 91.

6·4. General summary, p. 94.

6·5. Experimental method, p. 95.

6·6. The different types of oxygen film, p. 95.

6·7. The kinetics of the adsorption of xygen, p. 100.

CHAPTER 7 Dipole Interactions between Adsorbed Particles

7·1. Introduction , p. 104.

7·2. The electrostatic field , p. 107

7·3. The partition function for the system, p. 109.

7·4. The variation f the heat of adsorp­ tion, p. 111.

7·5. Numerica l calculations, p. 114

7·6. The treatment of long­range forces, p. 124.

REFERENCES 126

INDEX 129

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