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Oil evaporates very slowly. Oil doesn't mix with water, and most oils are less dense than water. So oil floats on top of water, and usually makes a very thin layer, covering all the water you have, or else it spreads out until the oil layer is just one or two molecules thick and you run out of oil.
When the oil is covering the water, it prevents water molecules from evaporating, just like putting a lid on a jar.
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∙ 13y ago
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Does oil prevent air from entering into water?
yes, thus the reason why fish die when an oil spill occurs.
What process does water change from liquid to a gas?
Evaporation
Does heating water increasing the rate of evaporation?
No it does not change the speed of evaporation
What is the process of water releasing heat called?
Evaporation. A body of water is cooled as a portion of it is converted to vapor by evaporation.
What is the result of evaporation?
After evaporation there is a lot of water vapor in the air that will rise until it condenses into water droplets from the cold air. Evaporation just turns water (liquid) into vapors that rise (gas form).
How can water be prevented?
Heat can prevent water, by evaporation.
What is sprayed on surface water to reduce evaporation?
An oil reduce evaporation.
Can oil be separated from water by evaporation?
yes
What liquid would stop water evaporation?
A film of oil at the surface reduce evaporation.
Can oil control the evaporation of water?
well idgaf
How does pipes taking water save instead of open ditches and canals?
pipe prevent water from evaporation.
What is the purpose of the mineral oil used for PCR when the termocycler does not have a hot lid?
To prevent evaporation of PCR products.
Why you do not use evaporation to separate oil from water?
this is because it does not decompose by heating
What do cells in your skin do to stop your bodies from drying?
They prevent excessive loss of water through evaporation.
What would you put in water so it doesnt evaporate?
A bit of oil on the surface reduce water evaporation.
How does the warming of the ocean affect the water cycle?
it increases the evaporation water.
What is the correct increasing order of evaporation of petrol alcohol kerosene water?
kerosine oil, water, alcohol, petrol...:)
