A water cooler usually refers to a water dispenser that chills the water. Some people also refer to a water fountain (one of those things you drink water from in public buildings or parks) as a water cooler as well.
it is already liquid if it is cooler water
It depends on the type of water cooler, but you can probably find the capacity at the bottom of the cooler.
Because the water is cooler the hot touch that you have causes the water to be cooler than what is is actually.
cooler
Sometimes people mistakenly refer to a water dispenser as a water cooler. The dispenser simply dispenses water with no change to temperature. The water cooler will cool the water as well. If you have one that is supposed to cool the water but isn't then there is likely a problem with the compressor.
The Brita water cooler has hot and cold taps which allow a person to choose the right temperature for himself/herself. Additionally, this water cooler also has filters which make the water clean.
cooler
cooler
In office environments, it is thought that people gather around the water cooler to take a break from their day and converse with other workers. The phrase Water Cooler Humor refers to any funny discussions that may not be appropriate for the workplace, but would occur when people chatted at the water cooler.
The lid is cooler than the steam (water vapor) produced by boiling the water. When the water vapor contacts that cooler surface, it condenses into liquid water.
So that the internals of the cooler don't get gunked up by precipitates that come out of suspension when the water is chilled. Solubles will still precipitate out.
The water is cooler than the land and air sinks over the water