no marks. to determine what portion of the question you have correct, check question score at the top of the assignment. indicate which molecule (a or b) in each pair has the higher boiling point. also indicate which force, hydrogen bonding (h), dipolar (p), or dispersion (d) is responsible for the difference.

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11-10-2022
Chemistry

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no marks. to determine what portion of the question you have correct, check question score at the top of the assignment. indicate which molecule (a or b) in each pair has the higher boiling point. also indicate which force, hydrogen bonding (h), dipolar (p), or dispersion (d) is responsible for the difference.

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AnnuG AnnuG · Answer 1 · 2022-10-18T10:30:23+02:00

Molecule (a or b) in each pair has the higher boiling point also indicate force, hydrogen bonding (h), dipolar (p), or dispersion (d) is responsible for the difference so in NH₃ and PH₃ the a molecule is high melting point and forces are dispersion force and in C₂H₅OH and CH₃OHCH₃ the molecule a has high melting point and has a dispersion force and C₄H₈ and C₁₀H₂₀ the b molecule has high melting point and has a dispersion force and in HCl and F₂ the a molecule has high boiling point and has a dipolar dipole interaction forces

The forces are electrostatic force between oppositely charged ions as in ionic bonds or through the sharing of electrons as in covalent bonds and there are four type of forces

Hydrogen bonding
dipole-dipole
dispersion
Ion dipole

So here given molecule in that we have to seen the forces and high melting point so

NH₃ and PH₃ : NH₃ has high melting point than PH₃ and has dispersion force
C₂H₅OH and CH₃OHCH₃ : C₂H₅OH has high melting point than CH₃OHCH₃ and dispersion force
C₄H₈ and C₁₀H₂₀ : C₁₀H₂₀ has high melting point than C₄H₈ and dispersion force
HCl and F₂ : HCl has high boiling point than F₂ and has a dipole interaction

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