Wiki User
∙ 10y ago31200
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Wiki User
∙ 10y agoFresh water under atmospheric pressure boils at 100 C or at 212 F
It depends on other conditions, such as the pressure, and the purity of the water. However, at normal atmospheric pressure, pure water boils at 100oC. As an example of the importance of pressure, consider that it boils at just 65oC at the summit of Mt. Everest. This is why you can't get a decent cup of tea up there!
Water boils at 100 degrees Celsius at standard atmospheric pressure because that is the temperature at which its vapor pressure equals the atmospheric pressure. If the temperature is increased beyond 100 degrees Celsius, the vapor pressure exceeds the atmospheric pressure, causing the water to evaporate rapidly but not necessarily boil.
At atmospheric pressure, liquid nitrogen boils at -196 degrees Celsius (-321 degrees Fahrenheit). If the pressure is increased, the temperature at which liquid nitrogen boils also increases.
Water boils at a lower temperature at higher altitudes due to the decrease in atmospheric pressure. On Mount Everest, with its high elevation, the boiling point of water is around 70°C (158°F) instead of the usual 100°C (212°F) at sea level.
At Muree hills the pressure of air is 700 which is less than 760 torr so water boils at 98 degree centigrade and at Mount everest pressure further decreases and water boils at 69 degree centigrade
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.
Water boils at lower temperatures at higher altitudes because the atmospheric pressure is lower at higher altitudes. This lower pressure decreases the boiling point of water. At sea level, the atmospheric pressure is greater, causing water to boil at 100 degrees Celsius.
Water boils at 100 degrees Celsius at sea level, or at standard atmospheric pressure.
Oxygen boils at a temperature of -182.96 degrees Celsius (-297.33 degrees Fahrenheit) at standard atmospheric pressure.
at normal atmospheric temperature (in plains) it boils at 100oC
The atmospheric pressure can affect the temperature at which water boils. Higher atmospheric pressure increases the boiling point of water, while lower atmospheric pressure decreases it. Additionally, impurities in the water can also raise the boiling point.