<You are not suppose to do that.>
That is BS. I manufacture computers. Depending on what you are cooling and what substance you have running through your lines, the times differ. Ethylene Glycol is the most common coolant, because it is non-conductive, and almost as thermodynamic as water. You should change this every six months or so, to prevent it from gelling up and solidifying in your pump.
Water is popular, because you can simply get it from your tap, and add an anti algae additive. I personally don't use water, but if you use it straight out of your tap, every 2 months would be sufficient, and changing your tubes and pump is required every year, to prevent calcium from binding to parts. Distilled or de-ionized water should be changed every 4-6 months. Remember to use additives if you use water! Along with giving you cool colors and stuff, it will prevent the growth of algae and other plant and bacterium that will restrict flow to your components. Phil Owner: The ProngHorn Axiom: Self Evident. Necessary.
to increase the boiling point of the coolant
By cooling the liquid.
The substance could liquefy or solidify. Cooling a gas: change from the gas phase to the liquid phase Cooling a liquid: change from the liquid phase to the solid phase
Phase change cooling Liquid Immersion
No, it's a physical change. Because we can change these vapours to liquid again by cooling.
One can purchase a liquid cooling system from many electrical and computer stores - such as PC World in the UK. One can get them from a place such as Currys or Gizmodo. One can also purchase a liquid cooling system cheaply on the internet through a site like Amazon. A great example of a liquid cooling system to use in a Computer is one that uses liquid nitrogen.
Chances are, you have a leak somewhere. You can check your hoses and cooling system components for leaks, and repair them as needed. You can either do a visual inspection, or do the dye and blacklight test. You may also not be changing your coolant out often enough. In the cooling cycle, coolant will change from liquid to vapor and back, with the inevitable result being that some of it will evaporate over time. Coolant doesn't last forever - it does burn out over time, and will need replacement.
No. Freezing is a physical change.
So that the coolant can stay in liquid form and flow through the cooling system.
This is coolant. You have a leak in your cooling system or you water pump has failed and is leaking.
Yes, in a sense. Gasses can be condensed into a liquid with cooling and pressure.
To turn a gas in to a liquid requires cooling or the removal of heat. This process is called liquefaction. Water vapor condenses into a liquid.