How to Determine High Boiling Point?

Consider the boiling points of increasingly larger hydrocarbons. More carbons means a greater surface area possible for hydrophobic interaction, and thus higher boiling points. As you would expect, the strength of intermolecular hydrogen bonding and dipole-dipole interactions is reflected in higher boiling points.

How do you determine boiling point?

Procedure
  1. Take a small test tube and fill it two-third with the given liquid whose boiling point is to be determined. ...
  2. Clamp the thermometer carrying test tube in an iron stand through a cork. ...
  3. Take a capillary tube 5-6 cm in length and seal it at about one cm from one end by heating it in flame and giving a slight twist.

How do you know if a boiling point is high or low?

Types of Molecules: the types of molecules that make up a liquid determine its boiling point. If the intermolecular forces between molecules are: relatively strong, the boiling point will be relatively high. relatively weak, the boiling point will be relatively low.

James H. Sterling

James H. Sterling

Environmental Science & Climate Journalist

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.