Factors Affecting Boiling Point

Many factors that affect the determination of boiling point include:

• Molecular structure and Intermolecular forces
• Impurities and Solvent effect

Molecular Structure and Intermolecular Forces

Molecular Structure influence the boiling point of a sample. Larger molecules tend to have higher boiling points compared to smaller molecules. This is because larger molecules have stronger London dispersion forces between their atoms, which require more energy to overcome during boiling.

Boiling point of a solvent is also affected by factors such as the intermolecular forces present in the molecules. The stronger the intermolecular forces, the lower the vapor pressure of the substance and the higher the boiling point.

Impurities and Solvent Effect

Impurities generally lower the melting point of a compound but raise the boiling point. This is because the impurities decrease the vapor pressure of the solvent, leading to an increase in the boiling point.

Solvent can also alter the boiling point of a sample. Solvents with high boiling points may require higher temperatures for efficient boiling, while volatile solvents may evaporate prematurely.

Determining the boiling point of organic compounds is essential for understanding their properties and behavior. It is the temperature at which a substance changes its state from liquid to gas. Several factors contribute to the boiling point of organic compounds, including intermolecular forces, molecular weight, and symmetry. In this article, we look into what a boiling point is, organic compounds, how to determine the boiling point of a given compound, precautions, etc.