– How can humidity in the air be measured as a percentage? How much humidity is 100%?
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So how much water can 1 cubic <insert favorite measure of volume here> hold at 0C, 10C, 20C?
So how much water can 1 cubic <insert favorite measure of volume here> hold at 0C, 10C, 20C?
If you add sugar to water, it will dissolve and disappear. If you add some more and stir, it too will dissolve and disappear into solution. If you keep adding sugar, eventually your water cannot hold any more in its dissolved form and it will form a precipitate at the bottom. Think sugar sludge left at the bottom of a cup of coffee.
Similarly, air can hold a certain amount of “dissolved” water vapor. The percent of that maximum is your humidity %.
Cave of Crystals in Mexico. Air temps up to 58° C and 90-99% humidity. People can only be on the cave for 10 minutes without cooling suits.
https://en.m.wikipedia.org/wiki/Cave_of_the_Crystals
Cave of Crystals in Mexico. Air temps up to 58° C and 90-99% humidity. People can only be on the cave for 10 minutes without cooling suits.
https://en.m.wikipedia.org/wiki/Cave_of_the_Crystals
If you add sugar to water, it will dissolve and disappear. If you add some more and stir, it too will dissolve and disappear into solution. If you keep adding sugar, eventually your water cannot hold any more in its dissolved form and it will form a precipitate at the bottom. Think sugar sludge left at the bottom of a cup of coffee.
Similarly, air can hold a certain amount of “dissolved” water vapor. The percent of that maximum is your humidity %.
If you add sugar to water, it will dissolve and disappear. If you add some more and stir, it too will dissolve and disappear into solution. If you keep adding sugar, eventually your water cannot hold any more in its dissolved form and it will form a precipitate at the bottom. Think sugar sludge left at the bottom of a cup of coffee.
Similarly, air can hold a certain amount of “dissolved” water vapor. The percent of that maximum is your humidity %.
To add to all the explanations, a measure of absolute humidity is the dew point, which is the temperature the air would need to be cooled to in order to be completely saturated, since colder air can hold less moisture. The closer the dew point is to the air temperature the more saturated the air is, and the more relative humidity you have. A relative humidity level of 100% means the dew point is equal to the air temperature, thus the air can’t hold more moisture.
To add to all the explanations, a measure of absolute humidity is the dew point, which is the temperature the air would need to be cooled to in order to be completely saturated, since colder air can hold less moisture. The closer the dew point is to the air temperature the more saturated the air is, and the more relative humidity you have. A relative humidity level of 100% means the dew point is equal to the air temperature, thus the air can’t hold more moisture.
To add to all the explanations, a measure of absolute humidity is the dew point, which is the temperature the air would need to be cooled to in order to be completely saturated, since colder air can hold less moisture. The closer the dew point is to the air temperature the more saturated the air is, and the more relative humidity you have. A relative humidity level of 100% means the dew point is equal to the air temperature, thus the air can’t hold more moisture.
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