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Vapor Pressures of an Air‐Water Interface During Evaporation 1
Author(s) -
Cary J. W.
Publication year - 1965
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1965.00021962005700060027x
Subject(s) - evaporation , water vapor , chemistry , vapor pressure , vapour pressure of water , membrane , environmental chemistry , chemical engineering , meteorology , organic chemistry , biochemistry , physics , engineering
Synopsis Low evaporation rates from soil caused solutes in the soil solution to accumulate at the air‐water interface and reduce the vapor pressure. Nearly ten‐fold increases in concentration at the interface were observed with ZnSO 4 in a cool moist soil. CaCl 2 , AlCl 3 , sucrose, and hexadecanol accumulated to lesser degrees, depending on the evaporation rate and the temperature. The small amount of water movement required to develop this increase suggests the phenomena may also occur next to semipermeable membranes, such as plant roots.