Question

Explain the change of state from liquid to gas on the basis of molecular structure

Answer 1

Answer: Phase changes can be brought about by heating or cooling. For example if water (a liquid) is heated enough, it evaporates and becomes water vapor or steam (a gas). This kind of phase change--liquid to gas--is called evaporation or vaporization. Water vapor can in turn be cooled to form liquid water. On heating The molecules gain more energy and thus moves faster and faster and changes to gas