Table of Contents
- 1 What is the relationship between evaporation and condensation when the air is saturated?
- 2 What happens when air is saturated with moisture?
- 3 Does higher pressure cause condensation?
- 4 How important is evaporation and condensation process to your life?
- 5 What happens when RH reaches 100%?
- 6 What is the difference between vaporization evaporation and condensation?
- 7 Why does evaporation occur in a closed system?
- 8 Why is there a net movement of liquid water to water vapor?
What is the relationship between evaporation and condensation when the air is saturated?
Water can evaporate and condense, changing from a gas to a liquid and liquid to a gas. When the atmosphere becomes saturated, it can’t hold any more water vapor molecules, so for every water that evaporates, one must condense.
What is the relationship between evaporation and condensation?
Condensation is the change from a vapor to a condensed state (solid or liquid). Evaporation is the change of a liquid to a gas.
What happens when air is saturated with moisture?
When relative humidity reaches 100 percent or is saturated, moisture will condense, meaning the water vapor changes to liquid vapor. Dew Point is the temperature at which air reaches 100 percent relative humidity. If the air is cooled below dew point, moisture in the air condenses.
What happens when evaporation and condensation are equal?
At the same time, water molecules in the gas phase are free to condense back into the liquid. The condensation rate will continue to increase until it matches the evaporation rate, which is a state called equilibrium, meaning the condensation rate equals the evaporation rate.
Does higher pressure cause condensation?
The higher the vapor pressure, the faster the rate of condensation. Condensation occurs when a water vapor molecule collides with a liquid water surface, and chemically binds to liquid water molecules. In other words, warm air can hold more water vapor than cold air.
How do you know air is fully saturated?
A state of saturation exists when the air is holding the maximum amount of water vapor possible at the existing temperature and pressure. When the dew point temperature and air temperature are equal, the air is said to be saturated. Dew point temperature is NEVER GREATER than the air temperature.
How important is evaporation and condensation process to your life?
Evaporation is a very important part of the water cycle. Once water evaporates, it also helps form clouds. The clouds then release the moisture as rain or snow. Condensation is crucial to the water cycle because it is responsible for the formation of clouds.
What happens when humidity reaches 100 %?
Dew occurs when the relative humidity reaches 100 percent. “Dew point temperature is an absolute measure of the amount of water vapor in the air,” Sobel said.
What happens when RH reaches 100%?
It just means that the air is holding as much moisture as it can at a given temperature, in the form of water vapor, which is an invisible gas. However, near 100% relative humidity, you can get water vapor condensing into very small water droplets to form clouds, including fog near the surface.
Where does the liquid go during evaporation process?
Evaporation happens when a liquid substance becomes a gas. When water is heated, it evaporates. The molecules move and vibrate so quickly that they escape into the atmosphere as molecules of water vapor.
What is the difference between vaporization evaporation and condensation?
Evaporation is the conversion of a liquid to its vapor below the boiling temperature of the liquid. Condensation is the change of state from a gas to a liquid. As the temperature increases, the rate of evaporation increases.
Which is greater the rate of evaporation or condensation?
Therefore, the rate of evaporation is greater than the rate of condensation, i.e., liquid water near the Earth’s surface is continually evaporating (changing phase from liquid to gas). You can easily convince yourself that this is true by leaving out a glass of water.
Why does evaporation occur in a closed system?
Evaporation and condensation in a closed system. Thus, the higher the concentration of water vapor molecules above the liquid surface, the faster the rate of condensation. Condensation occurs when a water vapor molecule collides with the liquid water surface, and chemically binds to the liquid water molecules.
What is the relationship between vapor pressure and saturation?
A Physical Explanation of the Processes of Evaporation and Condensation and the concept of Saturation, are provided in this figure depicting the relationship between vapor pressure and saturation. The figure shows what happens in a “closed system.”
Why is there a net movement of liquid water to water vapor?
Since the rate of evaporation is greater than the rate of condensation, there will be a net movement of liquid water to water vapor. A short time later in panel (b), there is now a measureable vapor pressure.