Question

From each pair below, select the molecule that will display weaker intermolecular dipole-dipole forces in a sample of the pure substance. Consider VSEPR and read Zumdahl "Chemical Principles" Section 13.3 "Bond Polarity and Dipole Moments, also Section 16.1 "Intermolecular Forces", particularly the paragraphs headed "Dipole-Dipole Forces", and 16.2 The Liquid State" H2S

Answer 1

o a mole clc th osse^ dipolc- dipole fr ce IP、le mustPosses dipolc. amà must be polar NOw Campare Xe o e. Au the dipole moment di polc are O em self. net dipole momen tonce, Net dipole (li) mment Po\ar amd PosseA dipole -dipole Prrces . Non Pola ) Weaker dipole - dipole 3 AIC Paner Jhe elechoeoaivi Al am therence bet 3 ana F is 3-18- 2.04 The elech negad) Diorence in ele crone^avi 3 16 6.ss kowey dipole , hence eaken Jipolc dipole interaction Jt hai Srca hr elcchmo ncgaiviy dier Alc13 than B dipolc than Alca

Vs Net Dipolc Vect dipole Vectr due to Some direclim Camcel each odher Such dhat he mole a s non polaxr . And Net Dipole Mmenb di pole Vector Honce, molecule Polar ntev malealey dipole- dipole rcos C S 2 S huchrt Nele dipsle 从 ofPoste and ea dipol Cam cel s each othcv his moleale has dipole Here, tro ame Momen dipole et dipele Vector. Hence hey addS no n f to ive net dipole. lton Ce weaker Dipolc moment . Dipole- Di pole oes polar