Chapter 19, Problem 36QRT

Interpretation Introduction

Interpretation:

Reason for phosphine boiling at much lower temperature than ammonia even though phosphine has twice the molar mass of ammonia has to be explained.

Concept Introduction:

Boiling point is the temperature at which the liquid state gets converted into vapor state.  Many factors influence the boiling point of a substance.  The bonds present between the atoms or molecules and the hydrogen bonding plays an important role in boiling point.