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.)
Properties of water - Wikipedia
WebThe gaseous phase of water is known as water vapor (or steam). Visible steam and clouds are formed from minute droplets of water suspended in the air. Water also forms a supercritical fluid. The critical temperature is 647 K and the critical pressure is 22.064 MPa. In nature, this only rarely occurs in extremely hostile conditions.
Water - Wikipedia
WebAlong with oxidane, water is one of the two official names for the chemical compound H 2 O; it is also the liquid phase of H 2 O. The other two common states of matter of water are the solid phase, ice, and the gaseous phase, water vapor or steam.
Vapor pressure - Wikipedia
WebIn meteorology, the term vapor pressure means the partial pressure of water vapor in the atmosphere, even if it is not in equilibrium. This differs from its meaning in other sciences.
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.
Steamy Relationships: How Atmospheric Water Vapor Amplifies …
WebFeb 8, 2022 · 5 min read. Steamy Relationships: How Atmospheric Water Vapor Amplifies Earth’s Greenhouse Effect. John Fowler on Unsplash. Water vapor is Earth’s most abundant greenhouse gas. It’s responsible for about half of Earth’s greenhouse effect — the process that occurs when gases in Earth’s atmosphere trap the Sun’s heat.
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.
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