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Nitric Oxide Sorption by Calcareous Soils: III. Effects of Temperature and Lack of Oxygen on Capacity and Rate
Author(s) -
Prather R. J.,
Miyamoto S.
Publication year - 1974
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1974.03615995003800040019x
Subject(s) - sorption , relative humidity , chemistry , oxygen , soil water , nitrogen , nitrous oxide , environmental chemistry , volume (thermodynamics) , humidity , soil science , adsorption , environmental science , thermodynamics , organic chemistry , physics
The sorption of NO by oven‐dry soils from dry air (relative humidity < 5%) containing a concentration of 1.5% NO by volume decreases exponentially with increasing temperature from 24 to 120C. From a moist stream (relative humidity > 95%), both NO and H 2 O sorption capacities and rates decrease with increasing temperature from 24 to 77C. The sorption capacity of NO relative to H 2 O changes little, while the relative sorption rate to that of H 2 O decreases markedly when the temperature increases from 24 to 36C but not for higher temperatures. The lack of gaseous oxygen severely inhibits the sorption of NO from both dry and moist nitrogen gas streams.