解析 A。解析:“clouds are made of water vapor”是客观事实,宾语从句陈述客观事实用“that”引导。选项B“if”表示“是否”,不适合陈述这种客观事实;选项C“what”在从句中要充当成分,这里不需要;选项D“how”表示方式等,这里不是关于方式的内容。反馈 收藏 ...
Vapor pressure of water - ScienceDirectELSEVIERFundamentals of Chemistry: a Modern Introduction
Andrew J. Heymsfield, in Encyclopedia of Physical Science and Technology (Third Edition), 2003 II.A Water Vapor in the Atmosphere The amount of water vapor present in the atmosphere is dependent in a complex way on (1) the amount that enters the atmosphere by evaporation and sublimation, (...
Evaporation, process by which an element or compound transitions from its liquid state to its gaseous state below its boiling temperature. It is also how liquid water enters the atmosphere as water vapor, which is an important part of energy exchange tha
In water-scarce areas, groundwater evapotranspiration is an important part of the hydrological cycle; it is one of the main sources of regional evapotranspiration and the main consumer of groundwater in areas with a shallow water table [4,5]. Arid and semiarid regions occupy approximately 30% ...
Solubilities and Diffusivities of Water Vapor in Poly(Methylmethacrylate), Poly(2-Hydroxyethylmethacrylate), Poly(N-Vinyl-2-Pyrrolidone) and Poly(Acrylonitrile). Polymer 2003, 44, 6323–6333. [Google Scholar] [CrossRef] Borrmann, D.; Danzer, A.; Sadowski, G. Water Sorption in Glassy Poly...
draw in warm water vapor for condensation. That takes energy—especially to produce enough water to keep a family hydrated during a shortage. The technology also relies on having vapor in the air to produce water from, meaning that it might be more difficult to operate in hotter, drier ...
(height). For the meaning of the symbols see Fig.3b. The measured dependencies of the water volume flowing through the device as a function of time for three values ofh: 75, 120 and 160 cm is shown in Fig.3d. Qualitatively, the Darcy’s law is satisfied, although for higherhvalues...
but when water vapor condenses out of the atmosphere it always does so on a particle of dust which releases substances into the water, and even the purest air contains carbon dioxide which dissolves to form carbonic acid. Except in highly polluted atmospheres, the impurities picked up by snow...
Learn about water vapor in the air. Study the measurement of water vapor in the air and uncover how to measure vapor pressure, humidity, mixing...