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.
Salt lowers the freezing point of water, which means that adding salt to diet Pepsi would decrease its freezing point. This can prevent the diet Pepsi from freezing as quickly or at the same temperature as it would without salt.
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.
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.
The freezing point and melting point are both physical properties of a substance that indicate the temperature at which a substance changes from a solid to a liquid (melting point) or from a liquid to a solid (freezing point). Both points represent the temperature at which the substance transitions between these two states.
Absolute zero is the lowest possible temperature at which atoms cease moving, causing all molecular motion to stop. At this point, all substances would theoretically freeze as no heat energy is available for movement.
no :(
Water, like all substances, has only one freezing/melting point, which is 0 C or 32 degrees F.
Yes, the freezing point of a substance is the same as its melting point. This is because both processes involve a change in state from solid to liquid or vice versa, and the temperature at which this occurs is the same for a specific substance under constant pressure.
Yes the melting and freezing points are the same.
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.
In my company, all the substances I work with are water based and freeze within 10 degrees C of plain water.
No, not all liquids and gases freeze in the same way as water. The freezing point of a substance depends on its chemical composition and molecular structure. Different substances will freeze at different temperatures.
Salt lowers the freezing point of water, which means that adding salt to diet Pepsi would decrease its freezing point. This can prevent the diet Pepsi from freezing as quickly or at the same temperature as it would without salt.
No. All liquids have different specific freezing points. Some liquids may have the same point, but that doesnt change anything.
Eutectic is a binary system of two substances which are miscible in all proportions in the liquid (molten) phase but do not react chemically. They have the property of lowering each others freezing point. The minimum freezing point attained is called Eutectic point and composition corresponding to Eutectic point is called Eutectic mixture. This type of system is called Eutectic system.
No, not all substances freeze into solids at zero degrees Celsius. The freezing point of a substance depends on its chemical composition and molecular structure. Different substances freeze at different temperatures.
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.