why does the temperature of a substance remain constant during melting and boiling even when heat is being supplied to it continuously
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When heat energy is supplied to ice it changes into water and then to vapor. If we cool the steam it gets converted into water and further cooling of water changes into ice.
Here the heat energy is used up in changing the state of matter. the heat is used to increase the kinetic energy of the particles of ice to such an extent that they break away from the rigid lattice structure of the solid form, ice, and move around freely to form the liquid form, water. So, until all the ice has melted, the heat absorbed does not raise the temperature of the ice-water mixture. In the same way the temperature doenot change while a liquid is boiling. This heat, which does not raise the temperature of the body, is called Latent Heat.
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Here the heat energy is used up in changing the state of matter. the heat is used to increase the kinetic energy of the particles of ice to such an extent that they break away from the rigid lattice structure of the solid form, ice, and move around freely to form the liquid form, water. So, until all the ice has melted, the heat absorbed does not raise the temperature of the ice-water mixture. In the same way the temperature doenot change while a liquid is boiling. This heat, which does not raise the temperature of the body, is called Latent Heat.
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the temperature of a substance remain constant during melting and boiling even when heat is being supplied to it continuously because the kinetic energy is used up in changing the state of material so no more energy is left to change the temperature
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