Masters Theses
Abstract
"The evaporation rate at 30°C of water droplets partially covered by surface active materials (SAM) were determined. While two of the SAM were studied at a single dew point depression (ΔTDP), seven others were examined over a range of ΔTDP values. It was found, by comparison with pure water drops under identical conditions, that SAM increases the evaporation rate as compared to the rate of an uncontaminated drop. The lack of effect of the hydrophobic chain length and the possible effect of the hydrophilic group on this phenomenon are discussed. The explanation proposed is that at 30°C thermal agitation of the hydrophobic chain causes a breakdown of the water structure and imparts extra energy to the molecules in the vicinity of the SAM. This corresponds to an elevation of the local temperature near the SAM and causes the overall evaporation rate of the drop to increase"--Abstract, page ii.
Advisor(s)
Stampfer, J. F.
Committee Member(s)
Carstens, John C., 1937-
Roach, D. Vincent
Department(s)
Chemistry
Degree Name
M.S. in Chemistry
Sponsor(s)
National Science Foundation (U.S.)
Publisher
University of Missouri--Rolla
Publication Date
1973
Pagination
vii, 74 pages
Note about bibliography
Includes bibliographical references (pages 67-71).
Rights
© 1973 David Alan Sierawski, All rights reserved.
Document Type
Thesis - Open Access
File Type
text
Language
English
Subject Headings
Evaporation (Meteorology)
Drops
Surface chemistry
Thesis Number
T 2920
Print OCLC #
6020228
Electronic OCLC #
914234029
Link to Catalog Record
Recommended Citation
Sierawski, David Alan, "A study of the ability of surface active materials to increase the evaporation rates of small, freely falling water drops" (1973). Masters Theses. 3362.
https://scholarsmine.mst.edu/masters_theses/3362
Comments
This work has been supported by the National Science Foundation Grant NSF GA-1509.