You think probable to evaporation, a change of phase.
The boiling point of water is 100 degrees Celsius or 212 degrees Fahrenheit. However, water boils at a lower temperature at higher altitude. Salt water boils at a higher temperature than pure water.
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Just bring water to a boil, and you'll find some.
You can find out how healthy your aquifer is by testing the water for microbes. If the water contains microbes, boil it before drinking it.
Do the experiment yourself and boil some water, you'll find its about 100 degrees Celsius, depending on its purity. or google
The salt alters the boiling point of the water so that it is lower, hence the faster boiling time. Actually, the addition of salt to water elevates its boiling point. This can be proven by a simple experiment. Boil water in a pot on the stove. Just as the water is starting to boil add copious amounts of salt. You should find that the water ceases to boil. If the water were to commence to boil more vigorously then this would confirm that the boiling point is depressed. The reason for the elevated boiling point is that the addition of salt (a polar compound) creates and additional bond between itself and the (polar) water molecules. This bond represents additional energy that must now be over-come to make the water boil.
The water evaporates and the salt remains in the beakerIt really depends on what you are trying to find out. If you want to know the effect of salt on the boiling point of water, then the answer is that salt water will boil at a higher temperature than pure water. So we can say that salt increases the boiling point of water, which is normally 100 degrees C.If you just want the observations of boiling salt water, then the answer is that as the water is boiling, it evaporates into the atmosphere as water vapour. So we actually lose water from the beaker (or whatever you are boiling the water in) into the air. If you boil it long enough, the water will eventually be lost altogether and you'll be left with dry salt crystals on the bottom and sides of the beaker.
Water boils in a vacuum because the surrounding pressure is reduced, allowing the water molecules to move more freely and escape the surface of the liquid as vapor. This lowers the boiling point of water, causing it to evaporate at a lower temperature.
Not likely if the temperature of the water heater is high enough. Viruses/germs can live in water heaters if the temperature is low enough. Depending on where your water comes from if you have city water or well, there could be bacteria, especially with city water as sometimes in a disaster, if something happens in the water lines, they'll ask that you boil your water before consuming. Your safest route if you doubt the safety of the water is to contact your local health department and find out how to have your water tested.
water temperature
To find the rise in temperature of water in a calorimeter, you would measure the initial temperature of the water, then add a known quantity of heat to the system (e.g. by burning a fuel), and measure the final temperature. The change in temperature of the water is a measure of the heat released or absorbed by the system.
At higher altitudes, atmospheric pressure decreases, causing water to boil at a lower temperature. Near the top of a mountain, the reduced atmospheric pressure lowers the boiling point of water to below 100 degrees Celsius.