Shown in the table below are the boiling points for a variety of different compo

Question

Shown in the table below are the boiling points for a variety of different compounds related by their position on the Periodic Table. Explain fully the trends observed in each group, and along each period, using the type and strength of intermolecular forces found in each molecule. Use these forces to explain why the boiling points change from left to right and top to bottom. (6 Compound BPt Compound BPt Compound BPt Compound BPt (oC) NF 1291 O 144.8 CCl CBr 128 76.7 192.5 NCls NBr 71 NA 2 SF2 SeF2 NAa NA CIF BrF -188 -100 20 a- NA, Not applicable

Explanation / Answer

CF4 is less polarisable than CCl4 because a smaller molecule will be less likely to form temporary dipoles and these temporary dipoles account for the fact that non-polar substance is gas, liquid or solid acting as intermolecular forces.

Also in CBr4 strong London depression forces and that's why it has highest boiling point among all.

So the order will be CF4>CCl4>CBr4

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.