Molecular Interactions Quiz Answers

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Answers to Molecular Interactions Quiz

1) (b) - because a single bond is longer than a double bond

2) histidine

3) ethanol is a hydrogen-bonded liquid but ethanethiol cannot form hydrogen-bonds

4) kinetic energy

5) van der Waals radius decreases from left to right

6) F = -grad(V) . i.e. the force is the negative of the gradient of the potential

7) dielectric constant

8) In methanol, because of its lower dielectric constant

9) the term depending on the twelth power of the distance

10) approximately a third of the electronic charge

11) The O...O distance is approximately 2.8 angstroms. This distance is less than the sum of the van der Waals radii.

12) the Coulomb force between charges

With thanks to David Moss
Last updated 14th May '96