why does the temperature of a substance remain constant during its melting point and boiling point
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The temperature of a substances remains constant during its melting or boiling point because the heat required is utilized in weakening the intermolecular force hence there is no rise or Fall in the temperature of the object
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Hi mate.
The question that you have asked is a very important concept in science for class 9 students.
Here's the answer:
While melting the temperature does not increase. It's because the heat energy supplied is used to break the intermolecular forces of attraction. Once all the bonds are broken the heat energy further supplied increases the temperature. The same happens in case of boiling. This heat is not seen as the temperature does not increase. So this heat is called Latent heat. For melting it is called Latent heat of fusion and for boiling it is called Latent heat of vaporisation.
that's it.
The question that you have asked is a very important concept in science for class 9 students.
Here's the answer:
While melting the temperature does not increase. It's because the heat energy supplied is used to break the intermolecular forces of attraction. Once all the bonds are broken the heat energy further supplied increases the temperature. The same happens in case of boiling. This heat is not seen as the temperature does not increase. So this heat is called Latent heat. For melting it is called Latent heat of fusion and for boiling it is called Latent heat of vaporisation.
that's it.
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