Define the normal boiling point of water. Why does a sample of boiling water remain at the same temperature until all the water has been boiled? Define the normal freezing point of water. Sketch a representation of a heating/cooling curve for water, marking clearly the normal freezing and boiling points.
Interpretation:
The normal boiling point of water is to be defined. The reason as to why a sample of boiling water remains at the same temperature until all the water has been boiled is to be stated. The normal freezing point of water is to be defined. The sketch representing a heating/cooling curve for water along with the normal freezing and boiling points is to be drawn.
Concept Introduction:
Boiling point of a compound depends significantly on the types of forces operating in the molecule. These forces majorly involve van der Waal’s interactions, dipole-dipole interactions, and hydrogen bonding interactions. However, in water molecules mainly hydrogen bonding is present.
The normal boiling point of water is
The addition of heat into water causes the conversion of liquid into vapors without raising the temperature of water. As a result, the temperature of water remains the same. Therefore, a sample of water remains at the same temperature during boiling until all the water has been boiled because addition of heat only changes the phase of water rather than raising the temperature.
The normal freezing point of water is
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