11th Class Chemistry Hydrogen & Its Compounds Question Bank 11th CBSE Chemistry Hydrogen & Its Compounds

  • question_answer Why are the melting and boiling points of heavy water more than those of ordinary water?


                    The molecular mass of heavy water \[({{D}_{2}}O)\] is more than that of ordinary water \[({{H}_{2}}O)\]. As a result, there is a greater degree of association of molecules in heavy water than in ordinary water. This results in greater melting and boiling points as compared to ordinary water.


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