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Rock salt is simply a naturally occuring compound of sodium chloride (the same stuff that is in the shaker on your table). Already a solid, it doesn't really have a freezing point. In a solution of 23% by weight in water, the freezing point is -21.12 oC.
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What is water freezing in the crack of a rock an example of?
Water freezing in the cracks of rock is an example of Mechanical Weathering also referred to as Physical Weathering.
Does temperature bellow freezing point cause rock to break?
Rocks are already frozen (unless it is molten lava). Otherwise mountains would simply be piles of dust. Water freezing in cracks or variations in the rock can cause breaking.
The freezing and thawing action of water affects a rock by?
Water seeps into cracks in the rock, and when freezing occurs, the water expands, thus making the crack slightly larger. This process is called mechanical weathering.
What melts ice the fastest sand mineral rock salt or cat litter?
Mineral salt lowers the freezing point of water, so it will melt.
What is freezing point depression?
For the definition and description of freezing point lower or freezing point depression[http://www.answers.com/freezing+point+depression?cat=technology&gwp=13Click here for the answer from Answers.com]For how to solve a freezing point depression problem with step-by-step instructions click on this question:[http://wiki.answers.com/Q/How_do_you_solve_freezing_point_depression_problemsHow do you solve freezing point depression problems?]
What happens to the freezing point of pure water when grit is added?
That really depends what you mean by grit. If it's just powdered rock, there is no effect. If you mean rock salt, then the freezing point is reduced because the salt dissolves. The lowest freezing point achievable for salt solution is - 21.1 degrees C.
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.
When should you apply rock salt?
Rock salt (or calcium chloride, potassium chloride) is applied to roads with ice or snow; the freezing point of water is lowered.
What is water freezing in the crack of a rock an example of?
Water freezing in the cracks of rock is an example of Mechanical Weathering also referred to as Physical Weathering.
Does temperature bellow freezing point cause rock to break?
Rocks are already frozen (unless it is molten lava). Otherwise mountains would simply be piles of dust. Water freezing in cracks or variations in the rock can cause breaking.
When do you apply rock salt to roadways?
During the cold days of winter, to decrease the the freezing point of water and avoid ice and snow on the roads.
How does the composition of the magma effect the temperature at which it solidifies?
When fluids such as water combine with rock, the composition of the rock changes, which lowers the melting point of the rock enough to melt it.
The freezing and thawing action of water affects a rock by?
Water seeps into cracks in the rock, and when freezing occurs, the water expands, thus making the crack slightly larger. This process is called mechanical weathering.
Does freezing cause water to expand and crack rock?
yes
What melts ice the fastest sand mineral rock salt or cat litter?
Mineral salt lowers the freezing point of water, so it will melt.
What is water freezing in a rock and cracking it called?
Frost action; a form of mechanical weathering of rock.
How does ice and freezing water pushes against the rock?
The increase of the volume of water when it freezes.
