| RefNo | PP/10/8 | 
| Previous numbers | PP/42/8 | 
| Level | Item | 
| Title | Paper, 'On the thermodynamic properties of substances whose intrinsic equation is a linear function of the pressure and temperature' by George Francis Fitzgerald | 
| Date | 1887 | 
| Description | Fitzgerald writes: 'Professor [William] Ramsay has communicated to me that he and Mr [Sydney] Young have found that within wide limits several substances in the liquid and gaseous states have the following relation connecting their pressure (p), temperature (T), and specific volume(v), p = aT + b, where a and b are functions of v only. Now in this case the following are the forms that the thermodynamic equations assume. T is temperature, and ϕ is entropy, and c and e are functions to be investigated, c being = dl/dT, where I is the internal energy, and e = dl/dv.'
  Annotations in pencil and ink throughout.
  Subject: Thermodynamics
  Received 11 January 1887. Read 27 January 1887.
  A version of this paper was published in volume 42 of the Proceedings of the Royal Society as 'On the thermodynamic properties of substances whose intrinsic equation is a linear function of the pressure and temperature'. | 
| Extent | 4p | 
| Format | Manuscript | 
| PhysicalDescription | Ink and graphite pencil on paper | 
| Digital images | View item on Science in the Making | 
| AccessStatus | Open | 
| RelatedMaterial | DOI: 10.1098/rspl.1887.0014 | 
Fellows associated with this archive
| Code | PersonName | Dates | 
| NA6172 | Ramsay; Sir; William (1852 - 1916); physical chemist | 1852 - 1916 | 
| NA6164 | Young; Sydney (1857 - 1937) | 1857 - 1937 | 
| NA7971 | Fitzgerald; George Francis (1851 - 1901) | 1851 - 1901 |