2007-04-21 21:17:16 · 5 answers · asked by sarah- 2 in Science & Mathematics ➔ Chemistry
All molecules have Van der Waals forces between them. Now, SiCl4 is a non-polar substance while PCl3 is a polar substance. When a molecule is polar, it has an additional intermolecular force known as dipole-dipole attraction. Thus PCl3 has a greater force of attraction in between its molecules so it has a greater boiling point than SiCl4.
2007-04-22 00:32:25 · answer #1 · answered by Y L 2 · 0⤊ 0⤋
sicl4 boiling point pcl3
2016-02-01 16:15:36 · answer #2 · answered by Diena 4 · 0⤊ 0⤋
PCl3 is a polar molecule, and SiCl4 is not. PCl3 therefore has dipole-dipole attractions, and SiCl4 only has weaker vdW forces.
2007-04-21 21:52:43 · answer #3 · answered by Gervald F 7 · 0⤊ 0⤋
electrostatic force of attraction is less in sicl4 compared to pcl3
2007-04-21 21:28:53 · answer #4 · answered by pratibha b 1 · 0⤊ 0⤋
Si is more electroposite... as electropositivity increases down the group in periodic table. so bond strength is more in SiCl4...
2016-03-18 05:18:44 · answer #5 · answered by Anonymous · 0⤊ 0⤋