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Evaporation is one of the four principal ways that heat can be transferred (the other three are radiation, convection, and conduction). Evaporation of sweat from the skin is an endothermic reaction: the reaction essentially "consumes" heat, which cools the body in the process. For a liquid to turn into gas, either by boiling or evaporation, energy is required. This is known as the latent heat of vapourisation. In the case of boiling this is provided by external heat sources but in the case of evaporation it has to come from within the liquid itself, thus cooling it. The energy is required to break the strong bonds between the molecules in the liquid and allow them to break free in gaseous form.
Evaporation is an endothermic (heat-absorbing) process because molecules must be supplied with energy to overcome the intermolecular forces.
Evaporation occurs at the surface of a liquid, and energy is required to release the molecules from the liquid into the gas. The use of this energy, known as latent heat, causes the temperature of the liquid to fall
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Can you use water for engine coolant?
Water will evaporate eventually. Also water will cause rust to the inside of the cooling system and cause overheating problems eventually.
What conclusion can you make about the effect of the evaporation on cooling?
what is the conclusion of evaporate rate water
What is the cooling element in the refrigerator?
The evaporation coils, where the HCFCs absorb heat and evaporate.
How does carbon dioxide effect the cooling of evaporation?
Carbonation does not evaporate as quickly as water.
Which causes more cooling ether or water?
Assume question is about evaporative cooling rate Ether had vapour pressure of around 0.7 ATM it would be readily evaporate in air. The ether would be a lot colder than water and cause higher cooling rate. However, if the matter talk about conduction cooling or cooling per unit mass it might be different answer from above.
Why petrol evaporate when kept in air?
Because the sun will reach it and cause it to evaporate.
How humidity affects the water cooling process?
When water can evaporate, the absorption of heat by the vaporizing water adds a significant amount of cooling. When the ambient humidity is already high, less water can evaporate before the air become saturated with water vapor and consequently cooling is more difficult. When ambient humidity is low, more water can evaporate before the air becomes saturated with water vapor - and thus more cooling can occur for the same flow rate of water.
How is water distilled?
Distillation is achieved by boiling the water and collecting and cooling the evaporate in a sterile container.
What are the conditions that can cause global cooling?
Turning off the sun may cause global cooling
What must happen to cause water to evaporate?
Heat.
Why is loose clothing worn on hot summer days?
It allows sweat to evaporate faster and more efficiently, cooling you down.
Does halite come from the cooling of lava?
No. Halite forms when various bodies of water evaporate. Halite is the mineral name for salt.
