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Why does it feel cold when rubbing alcohol evaporates from your skin?
Wiki User
∙ 14y ago
When something is evaporating from your skin, it is the more energetic molecules that are escaping. This results in the average energy of the molecules left behind dropping. Temperature is a measure of the average energy of a group of molecules.
The bonds holding rubbing alcohol molecules together are not as great as the bonds holding water molecules together and so the molecules escape more often in the case of water molecules. This increases the cooling effect.
Wiki User
∙ 14y ago
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Why does rubbing alcohol feel cold when applied to your arm?
Because you are dumb
Why does your hand feel cool when you spill alcohol on it?
Because alcohol evaporates easily, and sucks some heat from your hand as it does.
What is green rubbing alcohol used for?
Green rubbing alcohol is used in the same ways that regular rubbing alcohol is used. It is used for first-aid like scrapes and cuts, but generally has additives like menthol oil to smell and feel tingly and minty.
Why a drop of ether on your skin disappears fast and the skin feels cool?
Ether is a form of alcohol - which evaporates very quickly. This takes heat away from your skin, and thus you feel cold in that area.
Why does the liquid that is put on your arm before an injection feel cold?
The liquid they put on your arm is rubbing, or isopropyl alcohol. They do this to sterilize your skin so that when they inject you the needle doesn't push any dirt or bacteria that may have been hanging out on the surface into your arm. The reason it feels cold is because isopropyl alcohol evaporates extremely fast because of its high vapor pressure and evaporation is a process that requires energy which causes a cooling sensation on your skin. Its the same reason sweat or water cool you off.
Why is it that when you take shower with hot water you feel cold?
Water absorbs heat from its surrounding as it evaporates.
Is rubbing alcohol harmful to a child if swallowed?
Rubbing alcohol should not be ingested in children AND adults, no matter if you are in perfect health, ingesting more than an ounce will make you feel the need to call 911
Why do you feel cold after hot water bath?
The hot water on your skin opens your pores, and makes you sweat. The sweat evaporates, taking body heat away - making you feel cold. When your body is cold - you shiver.
Can rubbing your body down with rubbing alcohol lead to pneumonia?
This is no longer an accepted treatment for fever or infectious disease as it used to be. Years ago this was an accepted way to lower a temp of an infant or child. Please note: this is no longer accepted. Alcohol fumes could overcome or kill a child. To reduce fever in a child (dangerous high fever) use only a tepid bath (water a couple degrees below body temperature which would feel cool to your elbow) or get directions from the pediatrician. ANY time an infant has fever, the doctor should always be contacted.But being cold or having rubbing alcohol on your skin that makes you feel cold can not cause pneumonia. See the related question below about being cold making you sick.
Why do you feel cold after taking hot water bath?
The hot water on your skin opens your pores, and makes you sweat. The sweat evaporates, taking body heat away - making you feel cold. When your body is cold - you shiver.
You feel cold when a drop of petrol falls on your skin?
We feel cold when a drop of petrol falls on our skin because, heat from our body is transferred to petrol which usually evaporates at normal room temperature when it is exposed.
Can rubbing alcohol treat bruises?
It can make you feel better but the only way to cure a bruise is to allow time to heal it.
