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in Lower pressure water does not have to get as hot to boil

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Q: Where water boils first in lower pressure or high atmospheric pressure?
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Why is it different at 5000 feet to boil water?

The atmospheric pressure is lower. When you are boiling the water, the water's vapour saturation pressure is able to match the atmospheric pressure faster therefore it boils faster and at a lower temperature.


State and explain how the boiling point of water will change if the atmospheric pressure falls?

Water boils when its internal pressure reaches that of the atmospheric pressure. Therefor, if one lowers the atmospheric pressure, the water would boil at a lower temperature (in fact, one can make water boil at room temperature by dramatically lowering the atmospheric pressure).


Why would water boil at less than 100 degrees on top of a mountain?

The boiling point of any liquid is the temperature at which its vapor pressure becomes equal to the atmospheric pressure. So if the atmospheric pressure is lower, it will take a lower temperature to make the vapor pressure equal to that of atmospheric pressure. At hill-stations, the air is generally thinner due to the altitude and the atmospheric pressure is also lower. Here, it requires less than 100oC temperature to reach the point where the vapor pressure of water reaches that of air. So, water boils below 100oC at hill stations.


Why does water boils at lower temperatures than in a valley?

Water boils at lower temperatures at higher altitudes because the atmospheric pressure is lower. In a valley, the air pressure is greater, which allows water to reach a higher temperature before boiling. At higher altitudes, where the air pressure is lower, the boiling point of water decreases.


Why is it impossible for hikers camping on a high peak to get really hot cup of coffee?

At a high altitude, the atmospheric pressure is low, so water boils at a lower temperature; as it boils, it loses heat.


Why did your thermometer never hit 100 degrees Celsius when boiled?

You are probably above sea level so that the atmospheric pressure is lower than sea level pressure. Water boils at lower temperatures as the pressure is lowered. The other possibility is that the thermometer is not calibrated correctly, but I'd go with the atmospheric pressure is below sea level pressure.


How do water temperatures affect air pressure?

The lower the pressure then the lower the temperature that is required to make it boil. Water at the top of Mount Everest boils well below 100 degrees centigrade due to the lower atmospheric pressure.


Why does water boil at a lower temperature on a mountain than sea level?

The boiling of any liquid is tied in to the atmospheric pressure, in an open system. Every liquid has it's own vapor pressure, that is the balance between the vapor and liquid phase. When atmospheric pressure decreases, the vapor pressure increases since now there is greater space for the molecules of the liquid to come into vapor phase. At higher altitudes, the atmospheric pressure is lesser, that is, the air is thinner. Thus the liquid can attain higher vapor pressure faster and boil at a lower temperature.


Why altitude affects boiling point?

Ya ........ if you have an egg on the top of high mountain the altitude and less air density causes lower boiling points and when you get higher it reduces the boiling point of the water and it is due to atmospheric pressure.Boiling is directly proportional to atmospheric pressure which becomes lower when we go above the sea level example mountainous areas. Answered by 12th standard student.SSK.


Why will water at the bottom of a geyser not boil when it as at 100?

Water only boils at 100 degrees ( in C ) when the pressure on it is standard atmospheric pressure. In Denver, it boils at a lower temperature, and in a pressure cooker, it can get a lot hotter than that and still not boil. At the bottom of a geyser, the pressure is more than atmospheric pressure because of all the water laying on top of the lowest layer, so it can go higher than 100 without boiling.


What is the boiling tempuatures of water?

Water boils at 100 degrees Celsius or 212 degrees Fahrenheit under standard conditions at sea level (at one atmosphere of pressure).The boiling point of water and any other substance depends on the atmospheric pressure, which changes with elevation. At higher altitudes, the pressure is lower, and so water boils at a lower temperature. If the barometric pressure is not at the standard value, the boiling point will be different. For example, water boils at 72 degrees Celsius on Mount Everest.See the Related Questions links to see how atmospheric pressure and elevation affect the boiling point of water.At 1 atmosphere water boils at:100 oC;373 K; or212 Fahrenheit


How does pressure affect the temperature at which water boils?

There is a direct relationship between the temperature at which water boils and the air pressure on it. Higher pressure, higher boiling point. Lower pressure, lower boiling point.