9. Complete the following table : F2 HF CaF2 SF4 Substance b.R. -188 °C b.p. +20 °C m.p. +1418 °C b.p. -40 °C Substance composition (ionic,.) Physical state at +0 °C Physical state at -50 °C Compare physical states at the same T to rank their intermolecular forces (IeFs) in strength: has the strongest IeFs- -has the weakest IeFs

9. Complete the following table : F2 HF CaF2 SF4 Substance b.R. -188 °C b.p. +20 °C m.p. +1418 °C b.p. -40 °C Substance composition (ionic,.) Physical state at +0 °C Physical state at -50 °C Compare physical states at the same T to rank their intermolecular forces (IeFs) in strength: has the strongest IeFs- -has the weakest IeFs

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter8: Molecules And Materials

Section: Chapter Questions

Problem 8.44PAE

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Similar questions

8.45 Describe how interactions between molecules affect the vapor pressure of a liquid.
What is U when 1.00 mol of liquid water vaporizes at 100C? The heat of vaporization, Hvap, of water at 100C is 40.66 kJ/mol.
What feature characterizes the dynamic equilibrium between a liquid and its vapor in a closed container?
Consider the following data for xenon: Triple point: 121C, 280 torr Normal melting point: 112C Normal boiling point: 107C Which is more dense, Xe(s) or Xe(l)? How do the melting point and boiling point of xenon depend on pressure?
If you've ever opened a bottle of rubbing alcohol or other solvent on a warm day, you may have heard a little “whoosh” as the vapor that had built up above the liquid escapes. Describe on a microscopic basis how a vapor pressure builds up in a closed container above a liquid. What processes in the container give rise to this phenomenon?
Rubidium chloride has the sodium chloride structure at normal pressures but assumes the cesium chloride structure at high pressures. (See Exercise 69.) What ratio of densities is expected for these two forms? Does this change in structure make sense on the basis of simple models? The ionic radius is 148 pm for Rb+ and 181 pm for CI.
8.39 Under what circumstances are ion-dipole forces important?
A common prank on college campuses is to switch the salt and sugar on dining hall tables. which is usually easy because the substances look so much alike. Yet, despite the similarity in their appearance, these two substances differ greatly in their properties because one is a molecular solid and the other is an ionic solid. How do the properties differ and why?
8.48 Why must the vapor pressure of a substance be measured only after dynamic equilibrium is established?