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M.P=min TEMP From where a solid begins to melt.

B.P=MIN TEMP FROM WHERE( MELTED SOLID) OR LIQUID BEGINS to boil.

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13y ago

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How do you identify solids at melting or boiling points?

Melting and boiling points are different for each compound or element.


Do all liquids have the same boiling and melting point?

No, different liquids have different boiling and melting points depending on their chemical composition. The boiling point is the temperature at which a liquid turns into a gas, while the melting point is the temperature at which a solid turns into a liquid. Each liquid has its own unique set of physical properties that determine its specific boiling and melting points.


Do elements compounds and mixtures have fix melting and boiling point?

Elements have fixed melting and boiling points, while compounds have varying melting and boiling points depending on their composition. Mixtures do not have fixed melting and boiling points, as they are composed of multiple substances which each have their own individual melting and boiling points.


What is mean by melting and boiling point?

Melting point & boiling point means the temp that things melt & boil. Water's freezing & melting point is 32 degrees Fahrenheit or 0 degrees Celsius. The boiling point of water is 100 degrees Celsius or 212 degrees Fahrenheit. Different liquids or substances have different melting, freezing, and boiling points.


Why do the melting and boiling points of a particular substance virile?

The melting and boiling points of a substance are determined by the strength of intermolecular forces between its molecules. Substances with stronger intermolecular forces, such as hydrogen bonding or dipole-dipole interactions, will have higher melting and boiling points. Conversely, substances with weaker forces, like London dispersion forces, will have lower melting and boiling points. Therefore, the specific type and strength of intermolecular forces present in a substance dictate its melting and boiling points.


Do simple molecular substances have high or low melting and boiling points?

Simple molecular substances typically have low melting and boiling points. This is because the weak intermolecular forces, such as London dispersion forces, in simple molecular substances are easily overcome compared to the stronger bonds in ionic or metallic substances.


Why do we do disillation?

To separate substances (that have different boiling points).


Why do molecular compounds have low melting points and low boiling points relative ionic substances?

The bonds in the molecule are weaker.


What are the melting and boiling points of different substances?

At 1atm, the melting point of H2O(water) is 0 degrees celcius and the boiling point is 100 degrees celcius. Carbon dioxide's boiling point is at -25 degrees and so its meting point. Since it crystallises and sublimates, it has no liquid form. The boiling- and melting points of elements/compounds depend on the amount of pressure exerted on the element/compound. Generally, the higher the pressure, the higher the boiling and melting points. All except for water, gallium and bismuth. These substances' melting point decreases as pressure increases.


What causes different melting points?

Different melting points are caused by variations in molecular structures and intermolecular forces between substances. Substances with strong intermolecular forces will have higher melting points, while substances with weaker forces will have lower melting points. Additionally, factors such as molecular weight, shape, and polarity also contribute to the melting point of a substance.


How could the identify of a compound be established by melting point?

Pure substances have very specific melting (and boiling) points. Assuming the substance is pure you could measure the melting point and compare it to a known database of melting points.


Explain why the boiling point and the melting point can be used to help identify substances?

100 degrees mate. 100 degrees Celsius is the boiling point for pure water at 1atm or sea level. The boiling point is useful in identifying chemical compounds. Chemical compounds have different boiling points that are specific to it' s chemical composition. If you know what the boiling point or melting point is you can also tell if your compound is pure, as any impurities will change these.