How is heat energy supplied to a liquid during boiling at a fixed temprature utilized?does it increases the Potential energy between the molecules or is utilised as latent heat of vaporisation?
Answers
It seems that you are pretty fuzzed up.
During change of a liquid into vapors by boiling we supply heat to it, which in turn increases the kinetic energy of molecules which results in an increase in temperature. At boiling point, there is no further increase in the kinetic energy of the molecules . The heat energy supplied increses the potential energy of the molecules which decreases the intermolecular forces of attraction. The molecules move apart and the substance changes from liquid to vapors.
Actually, the heat supplied is utilised as latent heat of vaporasitaion as a consequence of which potential energy of the molecules increase. So, the heat supplied increases the potential energy and is utilised as latent heat of vaporasitaion as well.