202k views
5 votes
The molecule carbon disulfide CS2 is nonpolar and has only london dispersion forces between the molecules.Carbon tetrachloride CCL4 is also nonploar but is made larger molecules that are more strongly affected by london dispersion forces. Based on this information CS2 likely has a melting point and a vapor pressure when compared with CCl4

User Rushyo
by
5.7k points

2 Answers

3 votes

Final answer:

CCl4, with its larger size, has stronger London dispersion forces, resulting in a higher melting point and lower vapor pressure compared to the smaller CS2 molecule.

Step-by-step explanation:

The melting point and vapor pressure of a substance are influenced by the intermolecular forces present between its molecules. For nonpolar molecules such as carbon disulfide (CS2) and carbon tetrachloride (CCl4), the only intermolecular forces operating are London dispersion forces. Since CCl4 is a larger molecule than CS2, it has more electrons and a larger surface area, which leads to stronger London dispersion forces and subsequently, a higher melting point and lower vapor pressure when compared to CS2.

User Amaresh Kumar
by
4.8k points
0 votes

Lower and higher. I just took it and it was right. Good luck! :D

User Krn
by
5.5k points