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Why does evaporation cool a fire down?
Because evaporation removes the heat in the air. Heat is one of the fuels that fire needs to burn. Therefore, when the heat is gone, the fire is put out!
How does cooling affect the volume of the substance?
No. Actually evaporation is the vaporisation from the surface of liquid, so its not matters that how much volume is the water of, because the rate of evaporation is depends upon the area of surface.
What is the difference between evaporation and drying?
In evaporation water boils until it reaches it boiling point while drying just passage of heat until the substance get dried EVAPORATION IS PARTIAL REMOVAL OF WATER FROM THE COMMODITY .WHILE DRYING IS THE COMPLETE REMOVAL OF MOISTURE FROM THE COMMODITY..
Why do you feel cool on applying perfume or aftershave lotion?
evaporation takes energy. It gets this energy from the surface its evaporating from in the form of heat. The faster the evaporation, the greater the cooling effect. This is why we sweat, it evaporates to cool us down. perfume is mainly alcohol. This evaporates quickly hence the effect you have noticed.
How is evaporation dangerous?
Evaporation is not dangerous if you are evaporating a harmless substance such as water. But in the right circumstances, it can be
What happens to thermal energy in evaporation and condensation?
In evaporation, the heat is transferred to the substance being evaporated from some heat source or the surroundings. It is released by the substance.
Contrast what happens to thermal energy in evaporation and condensation?
In evaporation, the heat is transferred to the substance being evaporated from some heat source or the surroundings. It is released by the substance.
We cool ourselves by sweating and allowing evaporation to take what from your bodies?
Heat
How does evaporation cool down a fire?
evaporation takes away heat from the fire thereby reducing it's energy.
Why does evaporation require that heat energy be added to a substance?
Heat is energy the substance needs to change it's state of matter (the more energy a substance has the higher it's temperature)
Does alcohol absorb cold?
No. Its evaporation uses heat energy and causes it to cool.
How does hot water go from hot to cool?
Heat loss. Conduction, evaporation, and radiation.
What causes a substance to cool down?
A substance becomes cold by radiating its heat out to its surrounding.
Why does a desert cooler cool on a hot dry day?
Evaporation requires heat to supply the energy of vaporization. This heat is supplied by the unevaporated water, which must correspondingly cool.
How do your bodies use evaporation to cool ourselves?
Because it takes away the heat energy used by it to evaporate. Evaporation its self is a cooling process.
Why does evaporation cool a fire down?
Because evaporation removes the heat in the air. Heat is one of the fuels that fire needs to burn. Therefore, when the heat is gone, the fire is put out!
What 3 processes help distribute the sun's heat?
Evaporation helps the sun heat because when it's very hot in the day time and rain is coming through the evaporation can cool it down.
