For any substance, why does the temperature remain constant during the change of state?

Question

For any substance, why does the temperature remain constant during the change of state?

Monjur Alahi

4 views

2025-01-04 04:42

2 Answers

Salim Ahmed Kawsar

Because with the increase of temperature, more number of particles get enough kinetic energy to go into the vapour state. Hence temperature remains constant during the change of state.

4 views Answered 2023-02-05 15:29

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

During a change of state, the temperature remains constant. This is because all the heat supplied to increase the temperature is utilised (as latent heat) in changing the state by overcoming the forces of attraction between the particles. Therefore, this heat does not contribute in increasing the temperature of the substance.