Chemistry - A Molecular Science
Chapter 7 States of Matter and Changes in State 7.2 KINETIC-MOLECULAR THEORY AND THERMAL ENERGY The behavior of ideal gases* is ...
calculations in which energy is involved, the value used is R = 8.31451 J·mol -1·K -1. Room temperature is ~300 K, so thermal en ...
Chapter 7 States of Matter and Changes in State Intra molecular forces exist within a molecule. They are the bonds between atoms ...
Figure 7.6 Dipolar interactions in a polar molecule Dipolar interactions in HCl, which are represented with dashed lines, are be ...
Chapter 7 States of Matter and Changes in State 144 Example 7.6 CO is linear, so the centers of 2 positive (blue) and negative ( ...
Figure 7.10 Structure of ice The six-sided channels are responsible for the solid being less dense than the liquid. Water molecu ...
Chapter 7 States of Matter and Changes in State 7.5 LIQUIDS The energy of attraction between molecules in the liquid state is co ...
Figure 7.13 Definitions and energies of phase changes (a) The energy of a gas is much gr eater than the energy of a liquid, whic ...
Chapter 7 States of Matter and Changes in State The melting or freezing point is the temperature at which the solid and liquid c ...
LIQUID-VAPOR TRANSITION Once the entire solid has melted, additional h eating causes the temperature of the liquid to rise, and ...
Chapter 7 States of Matter and Changes in State water at 25 oC is 23.8 torr, so the relative humidity = (12.8/23.8)(100%)= 53.8% ...
while N is not. The normal boiling points are 77 K for N 2 and 81 K for CO, so the impact 2 of the dipole is not very great in t ...
Chapter 7 States of Matter and Changes in State more like a liquid. This unusual material is called a supercritical fluid . The ...
conditions. The energy required to convert a substance from the solid to the gas is known as the heat of sublimation , HΔ sub . ...
Chapter 7 States of Matter and Changes in State 7.7 CHAPTER SUMMARY AND OBJECTIVES The state of matter (phase) in which a substa ...
Chapter 7 States of Matter and Changes in State therefore, a function of pressure. Typically, when the boiling point of a substa ...
Chapter 7 States of Matter and Changes in State 7.8 EXERCISES See Appendix B for more exercises on the gas laws. 1. A weather re ...
Rapidly cooling a vapor in equilibrium with its liquid causes the liquid to boil. Explain. 23. Which has a greater potential ...
Chapter 7 States of Matter and Changes in State b) In what state of matter does the su bstance exist under room conditions? b) I ...
Chapter 8 Solid Materials 8.0 Introduction 8.7 Ionic Solids and Ionic Radii 8.1 Unit Cells 8.8 Covalent Solids 8.2 Cubic Unit Ce ...
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