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Unpublished paper, 'On the existence of multiple proportion in the quantities of heat, or equivalent alteration of internal space of bodies, caused by definite changes of state as produced by chemical combination or otherwise' by Thomas Woods

Reference number: AP/38/3

Date: November 1855

Description

Woods suggests after consideration of existing research into the subject that it is evident that specific volume of its combining equivalent is characteristic of matter. However, as every substance is composed of matter and space, or of particles with some distance between them, as is shown by expansion and contraction, whenever volume is altered there must be either an addition to or subtraction from the internal space of the body. This alteration of volume is evident in the case of bodies expanding or contracting by gain or loss of heat; but in chemical combination, where alteration of internal space must also take place, in chemical combination, Woods suggests, this alteration of internal space is not so plainly demonstrable.

Annotations in pencil and ink throughout.

Subject: Physical chemistry

Received 28 November 1855. Communicated by George Gabriel Stokes.

Written by Woods in Parsonstown [Ireland].

Whilst the Royal Society declined to publish this paper in full, an abstract of the paper was published in volume 8 of the Proceedings of the Royal Society as 'On the existence of multiple proportion in the quantities of heat, or equivalent alteration of internal space of bodies, caused by definite changes of state as produced by chemical combination or otherwise'.

Reference number
AP/38/3
Earliest possible date
November 1855
Physical description
Ink and graphite pencil on paper
Page extent
17 pages
Format
Manuscript

Creator name

Thomas Woods

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Citation

Thomas Woods, Unpublished paper, 'On the existence of multiple proportion in the quantities of heat, or equivalent alteration of internal space of bodies, caused by definite changes of state as produced by chemical combination or otherwise' by Thomas Woods, November 1855, AP/38/3, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/ap_38_3/unpublished-paper-on-the-existence-of-multiple-proportion-in-the-quantities-of-heat-or-equivalent-alteration-of-internal-space-of-bodies-caused-by-definite-changes-of-state-as-produced-by-chemical-combination-or-otherwise-by-thomas-woods, accessed on 09 March 2026

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  • Archived Papers

    The 'Archived Papers' collection is comprised of original manuscript scientific papers and letters submitted to the Royal Society which remained unpublished or were abstracted in the journal 'Proceedings of the Royal Society' published from 1830 onwards.

    Dates: 1768 - 1989

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