Multiple Select QuestionSelect all that applySelect the statements that correctly describe London dispersion forces.Multiple select question.Covalent compounds must have a dipole to have London dispersion forces.All covalent compounds exhibit London dispersion forces.London dispersion forces result from the weak interactions between temporary dipoles.Smaller covalent molecules have greater London dispersion forces.
Question
Multiple Select QuestionSelect all that applySelect the statements that correctly describe London dispersion forces.Multiple select question.Covalent compounds must have a dipole to have London dispersion forces.All covalent compounds exhibit London dispersion forces.London dispersion forces result from the weak interactions between temporary dipoles.Smaller covalent molecules have greater London dispersion forces.
Solution
The correct statements that describe London dispersion forces are:
- All covalent compounds exhibit London dispersion forces.
- London dispersion forces result from the weak interactions between temporary dipoles.
Explanation:
- London dispersion forces are present in all molecules, whether they are polar or nonpolar. Therefore, all covalent compounds exhibit London dispersion forces.
- London dispersion forces are indeed the result of weak interactions between temporary dipoles. These temporary dipoles occur because of the constant motion of electrons within atoms and molecules.
- Covalent compounds do not need to have a permanent dipole to have London dispersion forces. Even nonpolar molecules, which do not have a permanent dipole, can have London dispersion forces.
- Generally, larger molecules have greater London dispersion forces. This is because they have more electrons and thus can have larger temporary dipoles. Therefore, the statement that smaller covalent molecules have greater London dispersion forces is incorrect.
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