I need help with part a

A fluid has a boiling point of 300K at 1atm,Hvap=10kcal/mol. Suppose you make a molecular modification of the fluid that adds a hydrogen bond so that the new enthalpy is 15 kcal/mol at 1atm. a) Following question \#6 in chapter 14, what is the new boiling temperature? If the coordination number is 4 , what are the average energies per bond for both cases? (1p) b) In solving part a, the temperature dependence of p int was neglected. Assuming that the fluid consists of a diatomic molecule with a frequency of vibration of 1550cm1, which does not significantly change following the molecular modification, determine how appropriate was that approximation? (3p)