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A very interesting question ! We can search for the answer with a couple of "thought experiments".
#1). If you live in a place that has a nice, cold winter, you've probably experienced a day when snow fell from the sky
and covered the ground without melting, some puddles froze solid, and maybe a thin layer of ice collected on sidewalks
and tree branches.
It's easy to understand that these things happened because the temperature was below the freezing point
of water; so the rain fell as snow, and any water on the trees or sidewalks turned to ice.
Did the oxygen in the air around you also freeze solid, or did it remain in the gas phase ?
Did the gasoline in the tanks of parked cars also freeze solid, or did it remain in the liquid phase ?
#2). What do the members of your family do when they want to drink a cup of tea ? If your family is like mine,
then chances are they pour some water from the tap into a metal pot, light one of the burners on the stove,
and put the pot on the burner, in order to boil the water in the pot. The tea comes out tasting best when
boiling water is poured over the tea bag.
Eventually the temperature of the water reaches the boiling point, and it begins to turn to steam,
which blows the whistle on the pot, and you know it's time to make the tea.
With the water at its boiling point, does the metal pot also boil, or does it remain solid ? When the
boiling water is poured over the tea bag, does the ceramic cup also boil, or does it remain solid too ?
You can see where this is going. Just to wrap it up, think about relaxing at home after work, having a nice
cold glass of lemonade on the rocks before dinner. Then think about what's in the glass: You have solid ice,
liquid lemonade, and a mixture of gases called 'air', all at the same temperature and all in different 'phases'.
The direct answer to the question is obviously 'no'. Different substances freeze and boil
at different temperatures.
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What substances dissolve when added to a liquid?
all i know is that solutes lower its freezing point but i kinda think they dissolve into a liquid.
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.
What chemical property does rock salt have that causes the lowering of the freezing point in solutions of ice and salt?
All substances have a quantity known as their "cryoscopic constant". This quantity determines the amount their freezing point is lowered by having things dissolved in them. Water's is fairly large, and rock salt is fairly soluble in water. These two properties combine to lower water's freezing point significantly when rock salt is added.So, the property rock salt has that lowers the freezing point is its solubility.
All freezing point?
0 degrees
Why does melting point of ice decrease when you add salt?
There's nothing special about ice and salt; the freezing point of any substance lowers when you dissolve anything in it. This is called "freezing point depression" and it's one of the colligative properties of all substances."Why" is probably because the presence of the solute molecules interferes with the formation of the crystalline structure of the solid.
All liquids have the same freezing point?
no :(
What is the freezing point of hot water?
Water, like all substances, has only one freezing/melting point, which is 0 C or 32 degrees F.
Is freezing point of a substance is equal the melting point of the same substance?
The freezing point and the melting point both refer to the temperature at which a substance changes between a liquid and a solid state. If other conditions remain the same, the temperature at which a substance freezes is the same temperature at which it melts. Water is an every day example with a freezing point of 0C, the same temperature as it will begin to melt. Other substances such as metals have significantly higher melting points from around 200C to more than 3000C.
Are freezing and melting point the same?
Yes the melting and freezing points are the same.
What substances dissolve when added to a liquid?
all i know is that solutes lower its freezing point but i kinda think they dissolve into a liquid.
what are 5 common freezing point for substances you commonly work with?
In my company, all the substances I work with are water based and freeze within 10 degrees C of plain water.
What is one characteristic property of a substance?
i will give you three....melting point, boiling point, freezing point and one more is density
Does mass affect freezing point?
Well, I did an experiment in class on this question. We used different amounts lauric acid and it turned out that the freezing point was pretty much the same for all the samples. So, in all, the freezing point does not depend on the mass of a substance.
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.
What other substances have anomalous expansion?
Besides water, bismuth, silicon, gallium, antimony and germanium also form solids that are less dense than the liquid at the freezing point. All of these substances are less dense because the lattice structure of the solid is less dense than the random spacing present in the liquid at the freezing point.
What do not all substances contract the same in?
not all substances contract in the same
What chemical property does rock salt have that causes the lowering of the freezing point in solutions of ice and salt?
All substances have a quantity known as their "cryoscopic constant". This quantity determines the amount their freezing point is lowered by having things dissolved in them. Water's is fairly large, and rock salt is fairly soluble in water. These two properties combine to lower water's freezing point significantly when rock salt is added.So, the property rock salt has that lowers the freezing point is its solubility.
