-9c
at 17% relative humidity the dew point is -5.8C at a dry bulb of 20C
-17
Yes, at saturation.
Dew point is essentially the temperature at which the air would become saturated. I believe to measure the dew point you would have to use a combination of a dry bulb and a wet bulb thermometer on a device called a sling psychrometer. Then take those temperature values that you get and plug them into a specific equation which I can't remember off the top of my head and/or look at a specific chart of dry bulb and wet bulb temperature values to determine the dew point.
when the temperature reaches the dew point.
Dry bulb Temperature - Dew Point Temperature
the "current" temperature, ie, the temperature at which wet bulb and dry bulb are the same. when the wet bulb and dry bulb temperaturs equalized the dew point emperature equals them, because the air is saturated now.
at 17% relative humidity the dew point is -5.8C at a dry bulb of 20C
-17
Yes, at saturation.
Dew point is essentially the temperature at which the air would become saturated. I believe to measure the dew point you would have to use a combination of a dry bulb and a wet bulb thermometer on a device called a sling psychrometer. Then take those temperature values that you get and plug them into a specific equation which I can't remember off the top of my head and/or look at a specific chart of dry bulb and wet bulb temperature values to determine the dew point.
For air it will be 21.1 degrees Celcius
The dew point is a measure of the amount of water vapor in the atmosphere. As the temperature gets closer to the dew point, the humidity rises. When the temperature finally drops to the dew point (100% humidity), the the atmosphere is completely saturated with water, and it will start to rain (or snow, if the dew point is below freezing). Since the atmosphere is completely saturated when the temperature is at the dew point, it cannot go below the dew point.
The temperature to which air must be cooled to reach saturation is called the dew point.
Dew point is the temperature at which air becomes saturated.
when the temperature reaches the dew point.
The dew point controlled the temperature of the air.