Which of the following has the lowest boiling point? (2023)
Practice Questions
Q1
Which of the following has the lowest boiling point? (2023)
H2O
NH3
CH4
HF
Questions & Step-by-Step Solutions
Which of the following has the lowest boiling point? (2023)
Step 1: Understand what boiling point means. The boiling point is the temperature at which a substance changes from a liquid to a gas.
Step 2: Identify the substances being compared. In this case, we are comparing different molecules.
Step 3: Learn about intermolecular forces. These are the forces that hold molecules together. The stronger the forces, the higher the boiling point.
Step 4: Recognize that CH4 (methane) has weak London dispersion forces. These are the weakest type of intermolecular forces.
Step 5: Compare the strength of intermolecular forces in CH4 with other molecules. If other molecules have stronger forces, they will have higher boiling points.
Step 6: Conclude that since CH4 has the weakest forces, it will have the lowest boiling point among the options given.
