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Adding a salt to a pure substance depresses the melting point and elevates the boiling point.
Adding salt to water will enable it to stay liquid at a lower temperature than 0 oC; adding salt to ice will drop its temperature (this phenomenon was used in old fashioned ice cream makers); adding salt to water will make it boil at a temperature higher than 100 oC
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When is the freezing point of a liquid?
effect of pressure and impurties on the freezing and boiling point of liquids
What does melting point and freezing point mean?
There are three states of matter: gas, liquid and solid. The melting point is where a solid turns to liquid. The freezing point is where a liquid turns to solid.
The melting point of salt is the same as its?
Freezing point.
How do you have liquid water below zero?
Pressure if you are talking about pure water. Salt and other chemicals can lower the freezing point though.
What term describes the physical change of a solid to a liquid at the melting point?
Simple: a transformation from a solid to a liquid.
What is the same as the melting point of mercury?
The freezing point of salt is also its freezing point. This is the case with any substance, as it is the temperature that an element changes from the solid to liquid phase or the liquid to solid phase.
What is boiling and freezing point?
Freezing point is the temperature required to turn a liquid into a solid. Boiling point is the temperature required to turn a liquid into a gas. Almost everything has a freezing and boiling point. If you mean water well The freezing point is 0oC The boiling point is 100oC If you add a bit salt to the water to make saline then the freezing point is changed and lowered somewhere in the region of -10c (which is why we salt grit our roads in winter)
What is meant by the medical term or ailment 'freezing point depression'?
Freezing point depression is not a medical term, but a term of physics. It refers to the scientific concept of when the freezing point of a liquid is lowered by adding something to it. For example: The freezing point of water is 0 degrees Celcius, but if salt is added to water, the freezing point is lower, and will still be a liquid at 0 degrees.
What does salt have to do with the freezing point of water?
Adding salt to water the freezing point decrease.
What is a freezing point depression?
Freezing point depression is when the normal freezing temperature of a liquid is lowered by the addition of another solate for example the freezing temperature of fresh water can be lowered by the introduction of salt. This is why when salt is laid over snow the snow melts because the salt combines with the water in the snow and thereby increases it's freezing temperature.
Does salt slow freezing point?
Yes, salt lowers the freezing point of ice.
What is the freezing point of salt?
Salt, being a crystalized mineral with no water content has no freezing point.
What is the effect of salt on the freezing point of water and other liquids?
NaCl (Table Salt) is a solute in H2O, water, the solvent. Solid solutes lower the melting point (freezing point) points and raise the boiling points of liquid solvents. The particles of the salt interfere with the change of state, therefore causing liquid solvents to freeze (and/or melt) at lower temperatures and for liquid to boil at higher temperatures.
Will a liquid turn to gas at its freezing point?
No it would be the boiling point. At freezing point it becomes solid
How does salt affect the melting and freezing point of water?
Salt decreases the freezing point of water and increases the boiling point of water.
Why does the freezing point affect the freezing of salt water?
It does not, but salt affects the freezing point. All solids are frozen. Each has a different freezing point. Ice is just the freezing point of water. But your computer keys are frozen too. Different substances freeze differently. But for your purposes, compare water to salt water. The salt in the water causes there to be more things in the water that disrupt the tight hydrogen bonds.Since freezing is tighter H-bonds, salt lowers the freezing temperature because it is harder to freeze it now since there is salt in it.
Can mineral rock salt melt ice?
No. It's a physical change. The salt just lowers the melting point of the water so it can exist as a liquid at lower temperatures. Look up freezing point depression for more information.
