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 , O a n d N atom and the electronegative atom of another molecule. This interaction is stronger than dipole-dipole-interaction.

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Chapter 9, Problem 34QRT

Interpretation Introduction

Interpretation:

The implication about the strength of the forces between H2O and H2S 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, O and N atom and the electronegative atom of another molecule. This interaction is stronger than dipole-dipole-interaction.

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