Why Do CH3OH, CH3Cl, and CH3Br Have Different Boiling Points?

Click For Summary
The boiling points of CH3OH, CH3Cl, and CH3Br differ significantly due to the varying strengths of their intermolecular forces. CH3OH exhibits hydrogen bonding, leading to its highest boiling point at 65°C. In contrast, CH3Cl and CH3Br primarily experience dipole-dipole interactions and London dispersion forces, resulting in lower boiling points of –24°C and 4°C, respectively. The presence of hydrogen bonding in CH3OH is a key factor in its elevated boiling point compared to the other two compounds. Understanding these intermolecular forces is crucial for explaining the observed boiling point differences among these compounds.
Paulo2014
Messages
79
Reaction score
0
The boiling points of three compounds are: CH3OH, 65C; CH3Cl, –24C; CH3Br, 4C

Discuss the relative strengths of the intermolecular forces in liquid samples of these three compounds.

what should I include in my discussion?
 
Physics news on Phys.org
Explanation how boiling points depend on the intermolecular forces?
 

Similar threads

Looking for a chemical with a boiling point between 10C and 50C
  • · Replies 4 ·
Replies
4
Views
2K
Chemistry How do we know ##BF_3## has Lewis structure but ##Al_2S_3## does not?
  • · Replies 1 ·
Replies
1
Views
2K
Chemistry Finding the molecular formula of an unknown hydrocarbon
  • · Replies 4 ·
Replies
4
Views
3K
Simple distillation of compounds with similar boiling points
  • · Replies 8 ·
Replies
8
Views
7K
Basic Chemistry Questions: Understanding the Fundamentals
  • · Replies 9 ·
Replies
9
Views
4K
Chemistry Boiling Points and Intermolecular Forces
  • · Replies 1 ·
Replies
1
Views
3K
Qualitatively assessing melting/boiling points.
  • · Replies 5 ·
Replies
5
Views
6K
Why does 2-propanethiol have a lower boiling point than 1-propanethiol
  • · Replies 2 ·
Replies
2
Views
3K
What Do Flame Tests Reveal About Sodium and Chloride?
  • · Replies 6 ·
Replies
6
Views
3K
Chemistry Chemistry-Physical Changes and Intermolecular Forces
  • · Replies 2 ·
Replies
2
Views
6K