Water evaporates faster at higher temperatures, when its surface area increases and when exposed to moving air. The concentration of water and other substances in the surrounding air and air pressure also affect evaporation rate.
Raising the temperature of water increases the kinetic energy of surface molecules, hastening the rate of evaporation. A larger surface area boosts the number of surface molecules present, allowing more to escape as water vapor. When humidity is at 100 percent, the air is saturated and cannot accept more water vapor. Moving air channels saturated air away from the liquid, effectively lowering concentrations of water and other substances in the local air. In addition, high surface pressure impedes vapor escaping into the air.Learn More
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Water evaporates because individual water molecules break free of the bonds that hold them all together as a liquid. While water evaporates more in heat, it is possible for it to evaporate in cold conditions.Full Answer >
Water evaporates when molecules at the interface of water and air have enough energy to escape the forces that hold them together in the liquid. Evaporation, along with boiling, is a type of vaporization.Full Answer >
The human brain knows that water is wet based on temperature, movement and texture. Human skin does not have sensors that tell the brain water is wet, which is why the other qualities of water are so important and allow humans to recognize wetness.Full Answer >