The critical temperatures (K) and pressures (atm) of a series of halogenated methanes

Chapter 11, Problem 11.42

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The critical temperatures (K) and pressures (atm) of a series of halogenated methanes are as follows: Compound Critical Temperature 471 Critical Pressure 43.5 385 40.6 302 38.2 227 37.0 (a) List the intermolecular forces that occur for each compound. (b) Predict the order of increasing intermolecular attraction, from least to most, for this series of compounds. (c) Predict the critical temperature and pressure for CC14 based on the trends in this table. Look up the experimentally determined critical temperatures and pressures for CC14, using a source such as the CRC Handbook of ChemislnJ and Physics, and suggest a reason for any discrepancies.