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1. |
Take r as the distance between two molecules. The energy between stationary polar molecules is proportional to ____________ in the case of dipole-dipole intercations. |
A. | 1/r<sup>3</sup> |
B. | r<sup>3</sup> |
C. | r<sup>2</sup> |
D. | 1/r<sup>2</sup> |
Answer» B. r<sup>3</sup> | |