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How much heat is removed from the skin by the evaporation of 190 G of isopropyl alcohol?
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Does rubbing alcohol have a high or low specific heat capacity?
the boiling point of isopropyl alcohol is 82.5 degrees celsius or 355.5 K
What phase change occurs before and after rubbing alcohol absorbs?
Before rubbing alcohol absorbs, it is a liquid. While it absorbs (heat), the phase change occurring is evaporation. As the alcohol takes in heat, it turns into a gas.
How does alchol work on your skin to male you feel cool?
Your skin warms the alcohol and it evaporates. To evaporate, a liquid needs extra energy to turn the liquid into a gas. This is called latent heat of evaporation. The only source of this latent heat is your skin, so evaporation takes heat out of the skin. This is just how sweating cools you down but alcohol has a lower boiling point than the water in sweat and so evaporation takes place more quickly with the alcohol. If you try to cool a patient with a fever, use a cloth soaked in warm water (not cold) as it will evaporate more quickly and so cool more effectively.
Which must be present in the water cycle for evaporation to take place?
For evaporation to take place there must be some form of heat. This is heat from the sun
What makes the evaporation of water on earth?
The cause of evaporation is the absorption of heat from the environment.
How much heat is removed from the skin by the evaporation of 190 g about 12 cup of isopropyl alcohol?
heat of vaporization for isopropyl alc is 159 cal/grams
Is heat energy being added or removed during the process of evaporation?
In condensation heat is removed In evaporation heat is added
Which solution should be used to clean a CPU and a heat sink?
isopropyl alcohol
Does rubbing alcohol have a high or low specific heat capacity?
the boiling point of isopropyl alcohol is 82.5 degrees celsius or 355.5 K
What is the name of the energy removed in the process of evaporation?
heat energy
Does alcohol absorb cold?
No. Its evaporation uses heat energy and causes it to cool.
The changing of liquid into a gas is called?
It is called the Opposite of Condensation - that is Evaporation.
Is heat absorbed or released during evaporation?
Heat is absorbed by the molecules leaving the place the evaporation is occuring. That is why, after putting aftershave or cologne, you feel cold. The alcohol in the aftershave/cologne has evaporated and taken the heat from your face with it.
What phase change occurs before and after rubbing alcohol absorbs?
Before rubbing alcohol absorbs, it is a liquid. While it absorbs (heat), the phase change occurring is evaporation. As the alcohol takes in heat, it turns into a gas.
How do you remove oxide layer from steel after vacuum heat treatment?
It is important to heat treat in vacuum as otherwise lots of oxides form; after heat treat in vacuum oxides are removed, if part small enough, by use of an abrasive grit pad, such as Scothbrite A, and cleaned with acetone followed by isopropyl alcohol. If not protected, however, oxides will continue to form in air
What is the ester formed when propanoic acid reacts with isopropyl alcohol in the presence of heat and an acid catalyst?
Ch3-c(ch3)-o-c=och2-ch3
What is the best way to apply thermal compound when reseating a CPU?
Clean the CPU and the base of the heat sink with isopropyl alcohol before applying the thermal compound.
