what is mean by melting point and boiling point
Answers
Answer:
melting point is the temperature at which a substance starts melting to convert into liquid from solid.
boiling point is the temperature at which a substance changes into gas from liquid.
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Answer:
The boiling point of a substance is the temperature at which the vapor pressure of the liquid equals the pressure surrounding the liquid and the liquid changes into a vapor.
The melting point (or, rarely, liquefaction point) of a solid is the temperature at which it changes state from solid to liquid at atmospheric pressure.
Explanation:
Differences Between Boiling Point and Melting Point:
Melting point and boiling point both describe temperatures at which phase changes occur in substances. The main difference between boiling point and melting point is that the melting point is defined as the temperature at which solid and liquid phases are in equilibrium, whereas the boiling point is the temperature at which the vapour pressure of a liquid is equal to the external pressure.
The melting point is a defined for solids when it transfers from solid state to liquid state.
The boiling point is defined for liquids for a state change from liquid to gas.
Boiling point is highly dependent on the external pressure whereas the melting point is independent of the external pressure.
As the verb differences boiling point is to boil and melting point is to melt.
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