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Why does CO2 sublime at -72 degrees C while SiO2 has a melting point of 1713 degrees C?
Wiki User
∙ 11y ago
I had this qn for my assignment too... :)
Wiki User
∙ 11y ago
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Why is meso stilbene dibromide much less soluble than dl stilbene dibromide?
Meso stilbene dibromide is less soluble than di stilbene dibromide because it has a higher melting point. The melting point of meso stilbene is 238 degrees Celsius, while the other compound is only 114 degrees Celsius.
What is zero degrees called?
Zero Degrees Fahrenheit is called nothing. Zero degrees Celsius is the freezing point for water and the melting point for ice, while Zero degrees Kelvin is called Absolute zero. It is the temperature of space. Now, if you mean when water hits the zero degree celcius mark, it's called the freezing point.
How does salt raises the melting point of water?
It doesn't increase the melting point of ice, instead, it lowers it. When a solute (which is the salt) is added to a solvent (which is what dissolves it), the boiling point is increased while both the freezing and melting points are decreased. This is evident in the boiling point elevation and the freezing/melting point depression system.
What is the melting point of medal?
It depends on the metal. For example, Iron (Fe) has a melting temperature above 2000 degrees F, while Aluminum (Al) has a melting temperature below 2000 degree F. Moreover, Lead (Pb) has a temperature considerably lower then both Iron and Aluminum.
Why urea has sharp melting point but glass does not?
Urea is a pure crystalline compound so has a sharp melting point while glass is an amorphous mixture.
How do you determine the type of compound ionic or molecular from the melting point such as 1240 degrees C?
If the melting point is at 1240 degrees C then it is most likely an ionic compound, because ionic compounds have their melting points above 800 degrees C while the molecular compounds have their melting point at or below room temperature.
What is the melting point of a plastic thermoset?
The melting point of thermoplastics depends on the particular type of thermoplastics. The melting point varies from 160 Degrees Celsius to 350 Degrees Celsius for engineering thermoplastics. When it comes to high temperature thermoplastics, the melting point varies from 3593 to 4010 Degrees Celsius.
What is the melting temperature of ice in Fahrenheit?
Fahrenheit is not a liquid or a solid so it cannot freeze or melt. It isn't even a gas. It is simply a way of measuring how hot or cold something is.But the freezing point for water in Fahrenheit is 30 degrees. The boiling point, 212.Hope this helps! :)
How are boiling point and melting point different?
Boiling point is the temperature point at which a liquid becomes a gas while melting point is the point at which a solid becomes a liquid.
Why is the boiling point lower than melting point?
It is the opposite. The boiling point is greater than the melting point. for example for fresh water, the boiling point is 100 centigrade while the melting point (for ice) is zero.
Why is meso stilbene dibromide much less soluble than dl stilbene dibromide?
Meso stilbene dibromide is less soluble than di stilbene dibromide because it has a higher melting point. The melting point of meso stilbene is 238 degrees Celsius, while the other compound is only 114 degrees Celsius.
What is zero degrees called?
Zero Degrees Fahrenheit is called nothing. Zero degrees Celsius is the freezing point for water and the melting point for ice, while Zero degrees Kelvin is called Absolute zero. It is the temperature of space. Now, if you mean when water hits the zero degree celcius mark, it's called the freezing point.
Which metal melts at 29 degrees celsius?
The metal Cesium melts at 28.44 degrees Celsius, while gallium has a melting point of 29.77 degrees Celsius. No element melts at exactly 29 degrees Celsius.
What is purity criteria?
The criteria of purity of a compund isÊdetermined at it melting point.ÊA pure compound a definate melting point. While an impure substance has an indefinate melting point.
What happens to neon during melting point?
There are a number of things that could happen to neon while it is at its melting point. It could melt.
How does salt raises the melting point of water?
It doesn't increase the melting point of ice, instead, it lowers it. When a solute (which is the salt) is added to a solvent (which is what dissolves it), the boiling point is increased while both the freezing and melting points are decreased. This is evident in the boiling point elevation and the freezing/melting point depression system.
What temperature does it have to be to melt a soup can?
Most soup cans are not aluminum- they are tin plated steel. While the exact melting point will vary with the alloy used, it is ABOUT 1,350 degrees Celsius. It is MUCH higher than the melting point of aluminum.
