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Why does salt water boil at a lower temperature then tap water?
Wiki User
∙ 13y ago
slower is the wrong word, but I know what you're asking. pure water at standard pressure has to overcome two basic forces to jump into the gas phase. first, the air pressure of 101.k kPa is pushing down on the surface, holding those water molecules down. Next, all the water molecules are so polar, due to their bent shape, and the very electronegative bonds (oxygen electronegativity value of 3.5 vs. hydrogen's of 2.1). The polar water molecules are very attracted to each other due to the interactive force called hydrogen bonding.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoFor the concept of vapour pressure and boiling.
Vapour pressure of water is depend on temperature. At 100 oC, vapour pressure of water will be at the same as atmospheric pressure so it boil.
Salt, is in solid state and virtually had no vapour pressure. Presence of salt mean the vapour pressure is diluted. For such solution to have vapour pressure of atmosphere, it require increase of Temperature from normal boiling point.
Wiki User
∙ 11y agoThe boiling point of salt water is higher than the boiling point of pure water.
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How do you boil salt out of water?
You can boil water out of salt b/c water has a lower boiling point than salt...but I don't think the other way is possible.
How hot does an electric stove element get?
Maximum temperature of water is the boil temperature. But the boil temperature depends on atmospheric pressure and on salt content of the water. The more atmospheric pressure the more temperature. Boil temperature in mountain can be 60 centigrade. At normal (not high) land it usually 100 centigrade. But, as I said, temperature also depends on salt content (amount of salt) in the water. The more salt the less boil temperature. This way to take high grade boil when you cooking put the salt in to the water at the last moment of cooking.
When boiling noodles why add salt?
To Flavor The Noodles When salt is dissolved in water, it lowers the boiling point of the water slightly. This means that the water should boil faster as it boils at a lower temperature. The effect is small, however.
What temperature does salt water boil at?
Depends on how much and what salt, but definitely higher than pure water.
Will salt water boil or will regular water boil?
salt water will boil. also will freshwaer
Does drinking water boil at a lower temperature than salt water?
Yes, drinking water does boil at a lower temperature than salt water.
Why the sea water boil at a slightly higher temperature than water from from a freshwater lake?
The salt acts as a catalyst which prevents the water from boiling at the lower temperature.
Does high density boil before low density?
No. A liquid with a lower density will boil before one with a higher density (assuming identical heat sources). Fresh water will boil at a lower temperature than salt water.
What is the temperature if you put salt in water?
Adding salt does not effect the temperature.Answer:Adding salt does not change the temperature at the time you add the salt, but it raises the temperature at which the water will boil
How do you boil salt out of water?
You can boil water out of salt b/c water has a lower boiling point than salt...but I don't think the other way is possible.
What temperature does water with a salt solution boil at?
105 Celsius
How hot does an electric stove element get?
Maximum temperature of water is the boil temperature. But the boil temperature depends on atmospheric pressure and on salt content of the water. The more atmospheric pressure the more temperature. Boil temperature in mountain can be 60 centigrade. At normal (not high) land it usually 100 centigrade. But, as I said, temperature also depends on salt content (amount of salt) in the water. The more salt the less boil temperature. This way to take high grade boil when you cooking put the salt in to the water at the last moment of cooking.
What temperature does salt water boil at?
Depends on how much and what salt, but definitely higher than pure water.
When boiling noodles why add salt?
To Flavor The Noodles When salt is dissolved in water, it lowers the boiling point of the water slightly. This means that the water should boil faster as it boils at a lower temperature. The effect is small, however.
Why does plain water boil faster then salt water?
A liquid boils when the vapor pressure of the liquid is equal to the atmospheric pressure. The presence of salt in the water reduces the vapor pressure of the water at the temperature at which plain or distilled water will boil. Since the temperature of the salt water must be higher to reach the same vapor pressure as the atmosphere, it takes longer to boil.
How does fresh water freezes faster than salt water?
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.
Will salt water boil or will regular water boil?
salt water will boil. also will freshwaer
