Higher temperature of liquid and lower partial pressure of vapor in the air above the surface. The latter is why blowing at a spoon of hot soup makes it cool faster - you remove relatively fast moving water molecules from the air above the soup, “making room” for new ones to escape from the liquid, taking energy with them. read more
While evaporation is a straight forward process of liquid water turning into water vapor, there are other conditions that can have an effect on the rate of evaporation. These conditions are: Pressure: The higher the pressure, the slower the evaporation because there is more pressure on the surface of the water keeping the molecules in place. read more
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. read more
Evaporation takes place only on the surface of the body of water. The amount of evaporation depends on several factors - like, the temperature of both air and water, the humidity of the air, and the size of the surface exposed. read more
Evaporation should not be confused with boiling because when water undergoes evaporation, only water molecules that are on the surface of the water are actually turning into water vapor. Under conditions of boiling, the entire water has reached a complete phase change and therefore, the water is being turned into gas at a much faster rate. read more
Please help me. I have science fair due and I might just fail if I can't get a good grade, haha. read more