Yes, as the water changes state from liquid to gas it has a high latent heat- meaning that heat is transferred from the skin to the atmosphere as the water evaporates, much in the same way sweating works. However this technique will only mildly lower the surface temperature of the body, if the body is suffering from heat exhaustion more extreme methods of lowering body temperature should be used such as using a cool shower. Note that cold water should not be used to lower the body temperature as it may cause vasconstriction of the capillaries near the skin which can have counter productive consequences.
Evaporation of water off the skin cools it, this is why we sweat; so that when the sweat evaporates our body will cool down. The same principle applies when water is sprayed onto us, the water evaporating because of the air blowing on to it causes us to cool down.
Evaporation of a liquid is an endothermic process.
Water is the nutrient that helps regulate temperature.
Ice water has a lower temperature, but if you have plain water, and the ice water melts, it's likely that you'll have two glasses of water of the same temperature.
Water's high specific heat capacity helps to maintain body temperature. High specific heat capacity indicates a need for more energy to raise or lower the temperature of water. Sweat is another way that water helps maintain temperature. When sweat evaporates it draws in energy from the surroundings (the air and the body surfaces it is in contact with), effectively lowering the temperature.
Yes, drinking water does boil at a lower temperature than salt water.
The purpose of spraying oranges with cold water is to prevent them from cooling to the temperature of the frigid air. This helps to preserve the oranges against damage that could be caused by the cold.
No. The temperature of dry ice is far lower than that of ice water.
it raises the temperature.
When water has a substance dissolved in it, it freezes at a lower temperature. Salt water has salt dissolved in the water, so it freezes at a lower temperature than fresh water.
lower
lower temperature
you are removing heat!