what is the difference between water vapor and liquid water?
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Water vapor is water in its gaseous state-instead of liquid or solid (ice). ... When liquid water is evaporated to form water vapor, heat is absorbed. This helps to cool the surface of the Earth. This "latent heat of condensation" is released again when the water vapor condenses to form cloud water.
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In short, the higher the dry air temperature, the more water vapor the air can hold. As air temperature cools, the water vapor content falls. So, the percentage of water vapor in air changes with temperature (and pressure). When the amount of water in the atmosphere reaches saturation, the humidity is 100 percent.
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Water Cycle. Water can exist either as a solid (ice), a liquid (water), or a gas (water vapor). Water on the on surface of Earth is constantly changing between these three states. ... Responding to heat energy from the Sun, water in oceans, lakes, swamps, rivers, plants and even in your body can turn into water vapor.
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The amount of water vapor in the air, or humidity, depends on evaporation. Evaporation depends on water temperature -- as water warms, more molecules evaporate from its surface. Water in cooler air evaporates less and water in warmer air evaporates more and faster -- hence the relationship between heat and humidity.
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When water is heated, it remains a liquid until quite a high temperature, finally boiling at 100°C to give an invisible vapor. Water vapor behaves much like any other gas. It is easily compressible. Even when quite modest pressures are applied, the volume decreases noticeably.
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Clouds are not water vapor. Water vapor is the gas state of H2O and is invisible. ... Clouds are collections of liquid water droplets or ice that are small enough to float. When the water vapor in the air gets cold enough, it condenses back into liquid in the forms of droplets.
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A vapor is different from an aerosol. An aerosol is a suspension of tiny particles of liquid, solid, or both within a gas. ... In the atmosphere at ordinary temperatures, therefore, gaseous water (known as water vapor) will condense into a liquid if its partial pressure is increased sufficiently.
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The maximum amount of water vapor that can be in the air depends on the air temperature. Warmer air can hold more water vapor within it. That's why the muggiest days usually happen at the height of summer heat. But as the temperature goes down, the air can hold less vapor and some of it turns into liquid water.
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Water can occur in three states: solid (ice), liquid, or gas (vapor). Solid water—ice is frozen water. When water freezes, its molecules move farther apart, making ice less dense than water. ... As some of the water vapor cools, we see it as a small cloud called steam.
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When air rises in the atmosphere it gets cooler and is under less pressure. When air cools, it's not able to hold all of the water vapor it once was. Air also can't hold as much water when air pressure drops. The vapor becomes small water droplets or ice crystals and a cloud is formed.
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Air is a gas while water is a liquid. Air is compressible while water is for all purposes non compressible. Water is H2O with some dissolved solids and gases while air is a mixture of all gases with some water in the form of vapor.
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Answer Expert Verified Evaporation is the process of conversion of a liquid into vapor at a temperature below its boiling point. ... Boiling is the process by which a liquid turns into a vapor when it is heated at its boiling point.
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Vapor Pressure. The vapor pressure of a liquid varies with its temperature, as the following graph shows for water. ... As the temperature of a liquid or solid increases its vapor pressure also increases. Conversely, vapor pressure decreases as the temperature decreases.
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And though they are similar processes, the water comes from different sources. Evaporation is when water vapor comes from liquid surface water, such as streams, lakes, rivers, and oceans. ... Transpiration is when water vapor comes from liquid water excreted by plants.
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The vapor pressure of a liquid varies with its temperature, as the following graph shows for water. The line on the graph shows the boiling temperature for water. As the temperature of a liquid or solid increases its vapor pressure also increases. Conversely, vapor pressure decreases as the temperature decreases.
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However, an important difference exists between them; liquid describes a state of matter--as do "solid" and "gaseous"--whereas a fluid is any substance that flows. Nitrogen gas, for example, is a fluid, whereas orange juice is both a liquid and a fluid.
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The amount of water vapor in the air is called absolute humidity. The amount of water vapor in the air as compared with the amount of water that the air could hold is called relative humidity.