stil T-Mobile 8:57 PM a openvellum.ecollege.com C ? 183Chem1 21.002 Assignments

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stil T-Mobile 8:57 PM a openvellum.ecollege.com C ? 183Chem1 21.002 Assignments Chapt 11 Homework Problem 11.20 - Enhanced with Feedback ? 5of19 Which of the following statements are true? Select all that apply For the noble gases, the dispersion forces decrease while the boiling points increase as you go down the column in the periodic table All other factors being the same dispersion forces between linear molecules are greater than dispersion forces between molecules whose shapes are nearly spherical In terms of the total attractive forces for a given substance, dipole-dipole interactions, when present, are always larger than dispersion forces. The larger the atom, the more polarizable it is

Explanation / Answer

1.

All the factors being same, dispersin forces betweenlinear molecules are greater than dispersion forces between molecules whose shape is nearly spherical.

2.

Interms of total attractive forces for a given substance, dipole - dipole interactions, when present, are alwyas larger than dipersion forces.

3.

The larger the atom the more polarisable it is.

4.

For molecules with similar moleuclar weights, the disperion forces become stronger as the molecules become more polarizable.

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