(a)[1]
Define the term boiling point.
(b(i))[2]
Describe the arrangement of molecules in a liquid.
(b(ii))[2]
Explain, using ideas about molecules, why thermal energy (heat) has to be provided to the water while it is boiling.
Physics 5054 · O Level · Melting, boiling and evaporation
Melting, boiling and evaporation — practice question
In a steam cleaner, water is raised to its boiling point and then changed into steam (water in the gas state).