Table of Contents
- 1 When the temperature of air rises the amount of water needed for saturation what?
- 2 How does air temperature affect saturation?
- 3 When the temperature of air with water vapour reduces it goes higher and leads to?
- 4 What determines the amount of water the air holds?
- 5 When water vapor content is constant what occurs with the temperature and relative humidity?
- 6 What is the dewpoint temperature?
When the temperature of air rises the amount of water needed for saturation what?
When the relative humidity is 100% the air is saturated. When temperature increases and the amount of water vapor in the air stays the same, the relative humidity will (increase / decrease ). Dew Point – the temperature at which water vapor in the atmosphere condenses from a gas to a liquid.
How does air temperature affect saturation?
Changing the pressure affects the vapor pressure and therefore the temperature at which saturation occurs. The closer the dew point is to the air temperature, the closer the air is to saturation. The temperature, the dew point temperature, and the relative humidity are related to one another.
When the air temperature increases the saturation vapor pressure will?
It is important to understand that saturation vapor pressure (or the maximum amount of water vapor that can be in the air) increases exponentially as temperature increases. The sharp increase in saturation vapor pressure with increasing temperature continues beyond 40°C (104°F).
What is the temperature that air must become for air to be saturated?
60 degrees F.
Well, we’re once again going to need the Capacity of Saturated Air table. When we run down the table, we find that air with a water vapor content of 10.699 g/kg will be saturated when the temperature reaches 60 degrees F.
When the temperature of air with water vapour reduces it goes higher and leads to?
With the increase in the amount of water vapour the relative humidity also increases and if the amount of water vapour decreases then the relative humidity also decreased.
What determines the amount of water the air holds?
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.
How does air reach saturation?
Air can become saturated due to evaporation, the mixing of two unsaturated air masses or by cooling the air. Water vapor in the atmosphere condenses when it becomes saturated and bumps into condensation nuclei.
What does the saturation vapor pressure amount of water vapor air can hold primarily depend upon?
11 Cards in this Set
|What does Saturation vapor pressure primarily depend upon?||Air temperature|
|Saturation Vapor Pressure||describes how much water vapor is necessary to make the air saturated at any given temp. or it describes the maximum amount of water vapor the air can hold at a given time|
When water vapor content is constant what occurs with the temperature and relative humidity?
A relative humidity of 100% indicates the dew point is equal to the current temperature and that the air is maximally saturated with water. When the moisture content remains constant and temperature increases, relative humidity decreases, but the dew point remains constant.
What is the dewpoint temperature?
The dew point is the temperature the air needs to be cooled to (at constant pressure) in order to achieve a relative humidity (RH) of 100%. At this point the air cannot hold more water in the gas form. The higher the dew point rises, the greater the amount of moisture in the air.
What is the amount of water in the air?
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.