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 - Restricted Access

File Type

text

Language

English

Library of Congress Subject Headings

Evaporation (Meteorology)
Drops
Surface chemistry

Thesis Number

T 2920

Print OCLC #

6020228

Electronic OCLC #

914234029

Link to Catalog Record

Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.

http://laurel.lso.missouri.edu/record=b1067015~S5

Comments

This work has been supported by the National Science Foundation Grant NSF GA-1509.

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