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Salt ... ordinary table salt ... melts rather than sublimes at normal pressures.
To find the sublimation point, you'd need to specify a pressure and look at a phase diagram. The sublimation point would be the point on the solid/gas phase boundary where the pressure is equal to your specified pressure. I'm sorry I can't be more exact, but that's just the way it is; normally when people talk of "melting points", "boiling points", or "sublimation points" it's assumed that they're talking about a system at "standard pressure" (about 100 kPa), and sodium chloride does not sublime at that pressure at any temperature.
What else can I help you with?
Is alwayes sublimation point higher than melting point?
This question is unanswerable because anything that sublimes won't ever melt. Because sublime = the change from solid to gas, while at no point becoming a liquid. and melting = the process of heating a solid substance to a liquid I would beg to differ. Sublimation depends on other variables as well, i.e. pressure. (lower pressure) Water is a substance that sublimates and melts. It's sublimation point is actually lower than it's melting point (if it were higher the substance would be in it's transition state... defeating the purpose) I don't know nearly enough to tell you anything else, except that in a single substance, it is more likely that the sublimation point is lower.
What is the freezing and melting point of boron?
Boron has a melting point of 2076°C and a sublimation point of 2550°C.
What characteristics must a compound possess to be effectively purified by sublimation?
To be effectively purified by sublimation, a compound should have a high vapor pressure at a temperature below its melting point, be stable under sublimation conditions, and have minimal decomposition or side reactions. Additionally, the impurities should have different sublimation temperatures to allow for separation during the process.
What is the condensation point for Iron?
Iron does not have a condensation point because it undergoes a direct transition from a solid to a gas at temperatures above its melting point in a process called sublimation.
Sublimation and deposition can occur at all temperatures at or below?
Sublimation and deposition can occur at all temperatures at or below the substance's triple point temperature, where the solid, liquid, and gas phases coexist in equilibrium. At this temperature, the substance can transition directly between solid and gas phases (sublimation) or gas to solid phases (deposition) without passing through the liquid phase.
Is evaporation point and sublimation point the same?
no
Is alwayes sublimation point higher than melting point?
This question is unanswerable because anything that sublimes won't ever melt. Because sublime = the change from solid to gas, while at no point becoming a liquid. and melting = the process of heating a solid substance to a liquid I would beg to differ. Sublimation depends on other variables as well, i.e. pressure. (lower pressure) Water is a substance that sublimates and melts. It's sublimation point is actually lower than it's melting point (if it were higher the substance would be in it's transition state... defeating the purpose) I don't know nearly enough to tell you anything else, except that in a single substance, it is more likely that the sublimation point is lower.
What are affected by an increase in intermolecular forces?
Capillary attraction, Melting point, Heat of vaporization Sublimation temperature, Surface tension, Vapor pressure, Heat of fusion Boiling point, Viscosity, Density, Heat of sublimation Apex: Boiling point, viscosity, heat of sublimation, density.
What is the sublimation point for silver?
78.5 degrees celsius
Can you separate mixtures of ammonium chloride and naphthalene by sublimation?
yes but only by fractional sublimation (sublimating point of these substances are different)
What is the freezing and melting point of boron?
Boron has a melting point of 2076°C and a sublimation point of 2550°C.
Sublimation and deposition can occur at all temperatures at or below which?
The Critical Point
Changing form a liquid to gas is the answer is sublimation?
The answer is Sublimation of an element or compound is the change from a solid directly to a gas with no intermediate liquid stage. Sublimation is a phase transition that occurs at temperatures and pressures below the triple point.
What is the meaning of the sublimation?
Sublimation is the changing of a substance directly from a solid to a gas without turning to a liquid. Sublimation occurs at temperatures and pressures below the solids triple point.
When does sublimation happen?
When unsaturated vapour is cooled down under freezing point
What are the charaistics of an intermolecular force?
Boiling point, viscosity, heat of sublimation,density
What do you write on a magnet work diagram for sublimation?
The Point The Substance Freezes Or Melts
