Identify the predominant intermolecular forces in each of these substances

Question 1

Question 2

 Of 12 O Attem Match Each Event With The Dominant Type Of Force Overcome Or Formed.

Answer to question 1

Step: 1

The given compounds are as follows:

CH,COOCH, has dipole-dipole interactions and dispersion forces.

InH,O, NHz, and C,H,OH , hydrogen bonding is present because of 0-H and N-H bonds. They also have dipole-dipole interactions and dispersion forces.

In , only dispersion forces are present.

In these compounds, methyl acetate, , ammonia, water, and propyl alcohol have polar covalent bonds. Hence, they have dipole-dipole interactions. Methane is non-polar. Dispersion forces are present in all molecules. Hydrogen bonding is possible when a hydrogen atom is bonded with more electronegative atom like O, N, or F.

Identify the order of the strength of intermolecular forces to find the predominant intermolecular forces.
Step: 2

The order of the strength of intermolecular forces is as follows:

Hydrogen bonding > Dipole-dipole > London or dispersion forces

Hence, the predominant interactions in CH,COOCH, are dipole-dipole interactions.

The predominant interactions in H,O, NH,, and CH CH(OH)CH, are hydrogen bonding.

The predominant interactions in are London or dispersion interactions.

As ionic interactions are stronger than the other interactions, in ionic interactions are predominant.

Although dipole-dipole interactions are present in, present, hydrogen bonding is predominant in these molecules.

In, both hydrogen boding and dipole-dipole interactions are absent. Hence, dispersion forces are predominant in this molecule.


The predominant intermolecular forces present in these substances are as follows:

Hydrogen bonding Dipole-dipole Dispersion (London) forces H2O NHz CH4 ОН CH3COCHZ CH3CHCHZ

Answer to question 2

  Intramolecular forces Intermolecular forces
1) CO(g) is oxidized to CO(g) in a catalytic converter.2) Hand O​​​​​​​are combined in a fuel cell to form water.1) Water moves up a narrow tube due to capillary action.2) Ice melts.3) Sugar dissolution in water.

“When sugar dissolves in water, the intermolecular forces between sugar-sugar molecules (solute-solute interactions) and water-water (solvent-solvent interactions) are broken down and new intermolecular forces between sugar and water molecules (solute-solvent interactions) are formed”.

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