Question

Iodine monochloride (ICl) has a higher boiling point than bromine (Br2) partly because iodine monochloride is a(n)

Answer 1

Iodine monochloride (ICl) has a higher boiling point than bromine (Br2) because ICl is polar, having both London dispersion forces and stronger dipole-dipole attractions, requiring more energy to overcome compared to Br2, which is nonpolar and only has dispersion forces.

Step-by-step explanation:

Iodine monochloride (ICl) has a higher boiling point than bromine (Br2) partly because iodine monochloride is polar and exhibits both London dispersion forces as well as dipole-dipole attractions. These dipole-dipole forces are stronger than the dispersion forces alone, which are the only type of intermolecular forces present in nonpolar bromine. The higher boiling point of ICl is due to the additional energy required to overcome these dipole-dipole attractions in addition to dispersion forces, compared to the energy needed to overcome just the dispersion forces in Br2.

Answer 2

Answer: polar molecule.

Step-by-step explanation:

The boiling point is the temperature at which the vapor pressure of a liquid equals the external pressure surrounding the liquid. The boiling point is dependent on the type of forces present.

Iodine monochloride (ICl) is a polar molecule due to the difference in electronegativities of iodine and chlorine. Thus the molecules are bonded by strong dipole dipole forces. Thus a higher temperature is needed to generate enough vapor pressure.

Bromine
`(Br_2)` is a non polar molecule as there is no electronegativity difference between two bromine atoms. The molecules are bonded by weak vanderwaal forces and thus has low boiling point.