Question

why does temperature variations not visible in a thermometer when a solid change into liquid or a liquid into gas?

Pls tell the answer briefly​​

Answer 1

Answer:

All three states of matter (solid, liquid and gas) expand when heated. The atoms themselves do not expand, but the volume they take up does. ... This is the principle behind liquid-in-glass thermometers. An increase in temperature results in the expansion of the liquid which means it rises up the glass.

Explanation:

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Answer 2

Answer:

Temperature variations are not visible in a thermometer when a solid change into liquid or a liquid into gas because the heat required to overcome the forces between the particles and to change the state of matter does not increase the temperature. It only increases the kinetic energy of the particles to change the state. This heat energy is known as latent heat.

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