Question

Write scientific reason.

Even if boiling water is constantly heated, its temperature does not rise.

Answer 1

1. The heat energy absorbed at a constant temperature during transformation of liquid into a gas is called the latent heat of vaporisation.
2. When heat is supplied to boiling water, it is used to weaken the bonding between molecules of water, causing transformation from liquid state to gaseous state, i.e., steam.
3. As the heat supplied is utilized for the change of state entirely, temperature of water does not change.