worksheet 10 key

worksheet 10 key - CH 301 Fall 2010 Worksheet 10...

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CH 301 Fall 2010 Worksheet 10: Intermolecular Forces Answer Key 1. What is the major flaw with kinetic molecular theory that makes it unable to explain condensed matter? a. KMT assumes that there are no attractive forces between molecules and that consequently every molecule is a gas that when it collides with another molecule undergoes a perfectly elastic collision. In fact attractive forces exist in every kind of molecule and hence all molecules, at sufficiently low temperature become liquids and solids. 2. Which of the following gases would deviate the least from the ideal gas equation. Which one would deviate the most? Explain your answers. H 2 N 2 H F Deviates least: H 2 Explain: smallest size and smallest instantaneous dipoles. Deviate Most: HF Explain: although N 2 is the largest of the gases, it has only instantaneous dipoles whereas HF has strong H-bonding 3. True and false time. Be able to explain your answer. T F (a) Hydrogen bonds are sometimes stronger than covalent bonds—False, the strongest hydrogen bonds are still an order of magnitude smaller than covalent bonds. T
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worksheet 10 key - CH 301 Fall 2010 Worksheet 10...

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