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this is simple as it see
look when a body sweat there is moisture on surface of skin and when this moisture evaporate then ther eis transfer of heat from high temperature to low temperature
that's why we feel cool after sweating .....
It needs heat to convert moisture to a vapour and this heat is supplied by the body via the skin. The loss of heat is felt as cooling.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoWhen the skin excretes water (sweats) through the sweat glands, the evaporation of the water can help cool the skin as it absorbs heat from the body to change from liquid to vapor. The Heat of Vaporization of water at, hmmm, let's say 104 °F (40 °C) is 43.350 kJ/mol or 2408 J/g. At that same temperature, the heat capacity of liquid water is 4.179 J/g/°C - so for every gram of sweat evaporated, you can get 1 °C of cooling for 576 g of liquid water (and the body is mostly water). Since the sweat also leaves the body, it also carries some energy away with it in addition to the energy used to cause it to evaporate - enough to cool about another 5 grams of water 1 °C.
When we get hot from exercise our body dilates the veins near the surface of the skin (that's why light skinned people look red when they get hot). As the sweat absorbs heat from the skin, it cools it down the blood in those veins in the skin and that cooler blood then returns to the core of the body (after passing through the heart and lungs) and cools the entire body. Note that in very humid environments sweating doesn't do a very good job of cooling down the body because the air is already so close to saturated with water vapor that you get much less evaporation of sweat. Conversely in arid environments sweating can be extra effective in cooling the body.
Wiki User
∙ 10y agoSo basically sweat is water on your skin. It cools us down because when it evaporates ( ie changes from a liquid to a gas), it must have some energy to make that change. The sweat 'takes' this energy from the surface of your skin, and the less energy (in the form of HEAT energy), the cooler you are.
Wiki User
∙ 11y agoEvaporation is a process with absoption of heat,
Wiki User
∙ 12y agoBecause when the sweat comes out of the sweat pores in the epidermis (skin) it evaporates, cooling the body down naturally
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Why you are wearing cotton clothes in summer?
cotton clothes in summers keeps our body cool because they absorb all the sweat and makes us feel comfortable
What are different ways for water to leave your body?
Waste, skin, breathing, it comes out of every part of the surface of your body.
3 What effect does running a marathon have on the quantity and concentration of urine?
When you run a marathon you get very hot and the body has to use the water in your system to cool itself down which makes the urine more concentrated because there isn’t as much water in it. It also makes a smaller quantity of urine come out of the body because the water that would usually come out as part of the urine would have already come out as sweat from the body trying to cool itself down.
How much krypton is in the human body?
there is no krypton in the human body
The longest cell in human body?
The Longest cell in the human body is the nerve cell.
What does the human body depend on to cool itself?
sweat and evaporation
What does the human body depend on to cool itself in hot temperature?
sweat and water
What does the human body depend on to cool itself in hot environment?
the excretory system ----------------------------------------------------------------------------------------------------------- The human body depends on it's unique sweat glands to cool off the body. Heat containing sweat is released from the glands, in which the atmosphere absorbs the heat, resulting in a loss of heat for the body.
What does the human depend upon to cool itself in hot environments?
To maintain homeostasis, the human body may sweat to cool itself in hot environments.
What is mechanisms to cool the body down?
sweat is a mechanism to cool the body down. the body creates sweat, so it can cool itself down.
What does the human body depend upon to cool itself in heat environments?
Generally, it depends on sweat.
What does the human body depend on to keep itself cool in a hot environment?
Water and plenty of it. Your body needs the water to produce sweat and sweat although most people don't like it, helps keep the body cool. Hoped that helped.
'What does the human body depend on to cool itself during hot weather?
sweating is how the body cools itself down.
How does evaporation of a sweat help to cool off your body?
♥ sweat evaporates cooling the body, that's the point of sweating, to cool off. when it evaporates it releases body heat.♥
What is the fluid that keeps your body cool?
The fluid that keeps the body cool is sweat.
What happens to the human body if you are running in 85 degree Fahrenheit weather?
you sweat to stay cool. The heat of the sun is used to turn your sweat to water vapor, rather than to heat up your body.
What is the liquid released to cool the skin?
If you mean liquid released by the human body, then that liquid is perspiration, or in common terms, sweat.
