Chapter 9, Problem 34QRT

Interpretation Introduction

Interpretation:

The implication about the strength of the forces between $H_{2}O$ and $H_{2}S$ from the observation of their fusion enthalpy has to be given.

Concept Introduction:

Fusion enthalpy:

The energy required for melting of a solid to liquid is called fusion enthalpy.  For example, the melting of ice.  It is an endothermic process. Its unit is $J$.  Fusion enthalpy is higher for a substance having relatively stronger intermolecular force of attraction.

Hydrogen bonding:

It is a special type of dipole –dipole interaction between molecules.  It results from the attractive force between a hydrogen atom covalently bonded to an electronegative atom like $F,\text{}OandN$ atom and the electronegative atom of another molecule.  This interaction is stronger than dipole-dipole-interaction.