When water is boiling, its temperature remains constant at 100°C (at sea level) even though heat is being continuously added. This is because the energy is being used to change the water from a liquid to a gas, a process called vaporization, rather than raising the temperature. The heat energy goes into breaking the bonds between water molecules to form steam, not increasing the temperature. Only after all the water has turned into steam will the temperature begin to rise.
This question related to Chapter 7 Science Curiosity Class 6th NCERT.
From the Chapter 7. Temperature and its Measurement.
Give answer according to your understanding.
Energy added is used to change water to steam, not to raise temperature.
Explanation: This is a phase change, where energy input maintains a steady temperature as water turns to vapor.
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