but the word ‘ventil’ (valve) crops up a few times in the paper such as
Stahlventil—steel valve, and ventilgewinde—valve thread. The paper also
mentions ‘Weichblei’, a soft lead seal, a feature of Le Rossignol valves.
19. Incidentally confirming Le Chatelier’s Principle, that the %ammonia at
equilibrium was directly proportional to the total pressure at T.
20. Nernst had shown that no appreciable deviation occurred at 50–70 atm. so
the two men confidently assumed ‘ideal’ behaviour at 30 atm.
21. Haber, op. cit. (note 6). He even referred to its title in English, i.e., ‘The
Thermodynamics of Technical Gas Reactions’.
22. Indeed, years later in a bizarre turnaround of events, Haber’s calculations
were used as evidence to support Nernst’s Heat Theorem (see Chap. 15).
23. The increases in the constants here lie between 3 and 6% only.
24. Even by 1909 when Haber and Le Rossignol had completed their work on
the laboratory scale synthesis of ammonia, Haber wrote to Paul Krassa saying
that; ‘My old friend Nernst is falling back into the old tune …. and all hell will
break loose when he finds out about the synthesis! ..’.
25. ‘The situation (position) of the ammonia equilibrium’.
26. F. Jost, ‘Die Lage Des Ammoniakgleichgewichtes’, Zeitschrift f. Elektrochemie,
14, 373, (1908).
27. F. Haber and R. Le Rossignol, ‘Die Lage Des Ammoniakgleichgewichtes’,
Zeitschrift f. Elektrochemie, 14, 513–514, (1908).
28. Stoltzenberg, op. cit. (note 3), p.63.
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D. Sheppard
Stahlventil—steel valve, and ventilgewinde—valve thread. The paper also
mentions ‘Weichblei’, a soft lead seal, a feature of Le Rossignol valves.
19. Incidentally confirming Le Chatelier’s Principle, that the %ammonia at
equilibrium was directly proportional to the total pressure at T.
20. Nernst had shown that no appreciable deviation occurred at 50–70 atm. so
the two men confidently assumed ‘ideal’ behaviour at 30 atm.
21. Haber, op. cit. (note 6). He even referred to its title in English, i.e., ‘The
Thermodynamics of Technical Gas Reactions’.
22. Indeed, years later in a bizarre turnaround of events, Haber’s calculations
were used as evidence to support Nernst’s Heat Theorem (see Chap. 15).
23. The increases in the constants here lie between 3 and 6% only.
24. Even by 1909 when Haber and Le Rossignol had completed their work on
the laboratory scale synthesis of ammonia, Haber wrote to Paul Krassa saying
that; ‘My old friend Nernst is falling back into the old tune …. and all hell will
break loose when he finds out about the synthesis! ..’.
25. ‘The situation (position) of the ammonia equilibrium’.
26. F. Jost, ‘Die Lage Des Ammoniakgleichgewichtes’, Zeitschrift f. Elektrochemie,
14, 373, (1908).
27. F. Haber and R. Le Rossignol, ‘Die Lage Des Ammoniakgleichgewichtes’,
Zeitschrift f. Elektrochemie, 14, 513–514, (1908).
28. Stoltzenberg, op. cit. (note 3), p.63.
144
D. Sheppard