The temperature remain constant at the boiling point of water when the internal energy is increasing because: all the heat energy provided is used up in changing the state of water from liquid to gaseous water vapour.
A Change in state can be defined as the process of moving from one matter form to another due to heat supplied or removed.
A change in state can happen in different forms of matter.
In conclusion, The temperature remain constant at the boiling point of water when the internal energy is increasing because: all the heat energy provided is used up in changing the state of water from liquid to gaseous water vapour.
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