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What chemical reaction that absorbs heat called?
Endothermic reactionFor endothermic reactions Hfinal > Hinitial and DH is positive (+DH)It can be for example melting ice, or vaporising Rubbing Alcohol.---------Change of phases are not chemical reactions !
What creates dependency.Give an applied example?
Dependency can be created through reliance on a person, substance, or behavior for emotional support or fulfillment. For example, someone who turns to alcohol every time they feel stressed or anxious is creating a dependency on alcohol to cope with their emotions.
Does rubbing alcohol kill toenail fungas?
Rubbing alcohol (isopropyl alcohol) can kill some bacteria and viruses, but it is not as effective against fungi such as toenail fungus. It is recommended to use antifungal treatments specifically designed for toenail fungus for effective results.
Why does alcohol temp is low?
Alcohol has a lower boiling point than water, which means it evaporates at a lower temperature. This is because alcohol molecules are lighter and have weaker intermolecular forces compared to water molecules.
Why soda can is cold when taken out of refrigerator?
When the soda can is placed in the refrigerator, it absorbs the cold temperature of the surrounding air and cools down. This causes the can to feel cold to the touch when you take it out of the refrigerator.
Why is ethanol cold?
Ethanol feels cold when applied to the skin because it evaporates quickly, absorbing heat from the skin in the process. This rapid evaporation leads to a cooling sensation on the skin, similar to how rubbing alcohol or hand sanitizer may feel cold upon application.
Why does rubbing alcohol burn on your scrotum?
Rubbing alcohol contains isopropyl alcohol, which evaporates quickly and can lower the temperature of the skin, causing a cold sensation. This sensation may feel like a burning or stinging on sensitive areas like the scrotum. It is important to avoid applying rubbing alcohol to sensitive areas to prevent discomfort or irritation.
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.
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
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.
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.
Why do people use rubbing alcohol to break a fever?
You should not apply isopropyl alcohol directly to the forehead or anywhere else on the body. Isopropyl alcohol, unlike ethyl (drinkable) alcohol, is toxic to the body. In small amounts applied to wounds, it is not harmful, but since isopropyl alcohol is easily absorbed by the skin, it can rise to toxic levels very quickly. However, since rubbing alcohol is offered as either isopropyl or ethyl alcohol, if you have a purely ethyl alcohol and water- based rubbing alcohol, it can be used for this purpose. However, it should first be diluted with more water since it is of a very high concentration that is still harmful to the body. Use about 1 part ethyl rubbing alcohol, 2-4 parts water. Obviously, do not use this on young children because it has the same effect as if you gave them alcohol to drink. Sure won't hurt, it also won't help. It might feel cooling but it won't significantly affect your internal body temp. You need to rid your body of infection or take a medication that will lower your temp such as aspirin, acetominphen, or ibuprofen. However, don't take aspirin if you are under 15 years old because of the risk of Rye's Syndrome. Studies have shown that using isoprpyl alcohol and water baths for fever can be dangerous. The fumes from the mixture can be harmful to both the person being bathed and the person giving the bath as they can be absorbed through the lungs. The isopropyl alcohol can also be absorbed by the skin when applied to the skin. The amount of alcohol that would be used in a bath could lead to alcohol toxicity. Medical studies have shown that inhalation or absorption from the skin could lead to toxic levels of isopropyl alcohol.
Why does it feel cold when rubbing alcohol evaporates from your skin?
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.
Why is rubbing alcohol less dense than water?
Rubbing alcohol is less dense than water because it has a lower molecular weight and fewer hydrogen bonds, giving it a lower mass per unit volume than water. Additionally, the presence of the hydroxyl group (-OH) in rubbing alcohol contributes to its lower density compared to water.
When ate Vicks why you feel cold?
Read the label. Vicks is NOT to be eaten and is used only by rubbing on the skin. There is a warning on the label for this. Go to the doctor.
How cold is liquid nitrogen when freezing warts?
-320.2 DEGREES F but you wont feel it as long as it is applied properly.
Why does the liquid that is put on your arm before an injection feel cold?
The liquid used before an injection is typically alcohol. Alcohol quickly evaporates when it comes in contact with the skin, causing a cooling sensation. This sensation is due to the heat energy being used for the phase change from liquid to gas, making the skin feel cold.
