Water vapor - Wikipedia
WEBWater vapor, water vapour or aqueous vapor is the gaseous phase of water. It is one state of water within the hydrosphere. Water vapor can be produced from the evaporation or boiling of liquid water or from the sublimation of ice. Water vapor is transparent, like most constituents of the atmosphere.
Vapour pressure of water - Wikipedia
WEBThe vapor pressure of water is the pressure exerted by molecules of water vapor in gaseous form (whether pure or in a mixture with other gases such as air). The saturation vapor pressure is the pressure at which water vapor is in thermodynamic equilibrium with its condensed state.
Water vapor - Simple English Wikipedia, the free encyclopedia
WEBWater vapor is water that is in the form of a vapor, or gas. It is a part of the water cycle. When liquid water is heated to boiling point, 100 degrees Celsius (212 F), it turns into vapor. Water vapor can also be produced directly from ice; this is called sublimation. Steam is water vapor, but clouds are liquid water.
Vapor - Wikipedia
WEBVapor refers to a gas phase at a temperature where the same substance can also exist in the liquid or solid state, below the critical temperature of the substance. (For example, water has a critical temperature of 374 °C (647 K), which is the highest temperature at which liquid water can exist.)
The water cycle (article) | Ecology | Khan Academy
WEBThe water cycle, or hydrologic cycle, is driven by the Sun’s energy. The sun warms the ocean surface and other surface water, causing liquid water to evaporate and ice to sublime—turn directly from a solid to a gas. These sun-driven processes move water into the atmosphere in the form of water vapor.
The Atmosphere and the Water Cycle | U.S. Geological Survey - USGS.gov
WEBOverview. The atmosphere is the superhighway in the sky that moves water everywhere over the Earth. Water at the Earth's surface evaporates into water vapor, then rises up into the sky to become part of a cloud which will float off with the winds, eventually releasing water back to Earth as precipitation.
Condensation - National Geographic Society
WEBOct 19, 2023 · Article. Vocabulary. Condensation is the process where water vapor becomes liquid. It is the reverse action of evaporation, where liquid water becomes a vapor. Condensation happens one of two ways: Either the air is cooled to its dew point or it becomes so saturated with water vapor that it cannot hold any more water. Dew Point.
Water vapor | Britannica
WEBContents. water vapor. Learn about this topic in these articles: Assorted References. global warming. In global warming: Water vapour. Water vapour is the most potent of the greenhouse gases in Earth’s atmosphere, but its behaviour is fundamentally different from that of the other greenhouse gases.
Water - Simple English Wikipedia, the free encyclopedia
WEBWater in three states: liquid (including the clouds, which are aerosols), solid and gas (water vapour) Water (H 2 O) is a transparent, tasteless, odourless, and almost always colourless chemical substance and covers about 71% of Earth's surface. No known life can live without it. Water is essential for life. This has to be qualified a bit.
Evaporation - Simple English Wikipedia, the free encyclopedia
WEBContents. hide. Beginning. Differences between evaporation and boiling. Rate of evaporation. Related pages. References. Evaporation. A simple picture explaining the evaporation of water, though in real life you can not see the water, but only steam.
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