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.
Explanation:

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.
Hint:

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.
Explanation:

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.

Answer:

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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