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Chapter 10: Q21E (page 585)

Identify the intermolecular forces present in the following solids:

\(\begin{array}{l}{\rm{(a)C}}{{\rm{H}}_{\rm{3}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{OH}}\\{\rm{(b)C}}{{\rm{H}}_{\rm{3}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{3}}}\\{\rm{(c)C}}{{\rm{H}}_{\rm{3}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{Cl}}\end{array}\)

Short Answer

Expert verified

The intermolecular forces are

(a) hydrogen bonding and dispersion forces

(b) dispersion forces

(c) dipole-dipole attraction and dispersion forces

Step by step solution

01

Step 1:  Identify the intermolecular forces for part (a) 

(a) Since hydrogen is attached to oxygen molecules, therefore it can form hydrogen bonds. In addition to this, dispersion forces are always present.

So, overall there are two intermolecular forces present in\({\rm{C}}{{\rm{H}}_3}{\rm{C}}{{\rm{H}}_3}{\rm{OH}}\):hydrogen bond and dispersion.

02

Step 2  Identify the intermolecular forces for part (b) 

(b) Only dispersion forces are present in this molecule.

03

 Identify the intermolecular forces for part (c)  

(c) Since C-Cl bond is polar, therefore dipole-dipole interaction is present in this. In addition to this, dispersion forces are always present.

So, overall there are two intermolecular forces present in \({\rm{C}}{{\rm{H}}_3}{\rm{C}}{{\rm{H}}_2}{\rm{Cl}}\) :-dipole-dipole interaction and dispersion.

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Most popular questions from this chapter

Titanium tetrachloride\(Ti{\rm{C}}{{\rm{l}}_4}\) has a melting point of\({\rm{23}}{\rm{.2}}^\circ {\rm{C}}\) and has a 螖H fusion =\(9.37\)kJ/mol.

(a) How much energy is required to melt \(263.1\)g\(Ti{\rm{C}}{{\rm{l}}_4}\)?

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