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What is the relation between pressure and melting point of a substance?
Wiki User
∙ 11y ago
The greater the pressure acted upon the substance,the melting point of the substance lowers. For example, a copper wire is tied around a block of ice. It is noticed that the area around the tied place melts faster than the other parts of the ice. This implies that a greater pressure is acting upon the tied area of the block of ice. -KAREEM IBRAHIM.
Wiki User
∙ 11y ago
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What is the temperature called at which a substance changes from a solid to a liquid?
It is the melting point of the substance.
Would an increase in pressure cause this substance to freeze or melt?
Corrected: Only with some peculiarsubstances like ice contract on melting and expand on freezing. Since pressure also contracts ice, doing the same work of melting, the melting point of ice DECREASES with INCREASE of pressure.Added:In 'Related links' attached to this page (lower left corner) a diagram-picture of"Melting point: Temperature and Pressure" is shown asGreen line for most 'normal' solidsand ofWater-Ice: it is the Green-Dotted line.
What is difference between extensive and intensive properties?
* Intensive - Properties that do not depend on the amount of the matter present. ** Color ** Odor ** Luster - How shiny a substance is. ** Malleability - The ability of a substance to be beaten into thin sheets. ** Ductility - The ability of a substance to be drawn into thin wires. ** Conductivity - The ability of a substance to allow the flow of energy or electricity. ** Hardness - How easily a substance can be scratched. ** Melting/Freezing Point - The temperature at which the solid and liquid phases of a substance are in equilibrium at atmospheric pressure. ** Boiling Point- The temperature at which the vapor pressure of a liquid is equal to the pressure on the liquid (generally atmospheric pressure). ** Density - The mass of a substance divided by its volume * Extensive - Properties that do depend on the amount of matter present. ** Mass - A measurement of the amount of matter in a object (grams). ** Weight - A measurement of the gravitational force of attraction of the earth acting on an object. ** Volume - A measurement of the amount of space a substance occupies. ** Length
What will happen if you apply pressure on ice?
as ice will come in contact with the substance, it will come in direct contact with its heat thus increasing the kinetic energy of the molecules . this results in melting of ice.
Are melting and boiling point physical properties of a substance?
Melting and boiling points are physical properties of materials.
For any pure substance the boiling point and melting point will always remain?
The melting point and the boiling point of a substance are physical characteristics for each substance and are unchanged at the same pressure.
Physical state of substances properties and behavior at room temperature and standard atmospheric pressure?
The physical state of a substance in relation to its properties and behavior at room temperature and standard atmospheric pressure will simply be the lowest energy state for the substance. This is the state that the substance can't help but go back to, unless energy is put in to do otherwise.
What is the health benefit of melting metal?
Any relation between some health benefits and melting of metals.
Physical state when a substance is melting?
When a substance is melting, there is equilibrium between the solid and liquid state, meaning it is both a solid and a liquid.
Why is there a pattern between melting point and atomic radius?
A relation doesn't exist.
What is high melting point?
The melting point of a solid is the temperature at which it changes STATE from SOLID to LIQUID. At the melting point the solid and liquid phase exist in equilibrium. The melting point of a substance depends (usually slightly) on pressure and is usually specified at STANDARDatmospheric pressure.
What is the temperature at melting point?
The temperature at melting point will vary. It generally depends on the substance and on the actual pressure. The reverse of this is called freezing point.
What is the effect of change in pressure in melting point?
Putting a substance under pressure increases its melting point because substances expand as they melt. Putting them under pressure makes it harder for them to expand, which means that they require more energy (heat) in order to transition from a solid state to a liquid state. If a substance is under pressure, decreasing the pressure will lower its melting point.
When a substance is melting the temperature of the substance what?
it decreases.
Are melting and boiling points of a substance the same?
The melting and boiling points of a substance (in this case I am assuming you are referring to a pure substance, and not a mixture), are the same. The triple point is defined by the temperature and pressure at which solid, liquid, and vapor of a substance, can coexist in equilibrium. At any pressure below the triple point, only sublimation and condensation are possible (no liquid phase is possible). Between the triple point pressure and the critical point pressure, there is a difference between the melting and boiling points, of a substance. The melting point temperature will be lower than the boiling point. At the critical point, the densities of the liquid and vapor phases, have merged, and boiling no longer occurs. At and above the critical point, you cease to get liquid and vapor, but you get what is referred to as a "supercritical fluid".
What is the relationship between a substance's melting point and freezing point?
is the same
What are the relationships between the melting point and the atomic radius of an atom?
A relation doesn't exist.
