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Chapter 12: Problem 59
The greater the molar heat of vaporization of a liquid, the greater its vapor pressure. True or false?
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Calculate the number of spheres in these unit cells simple cubic, body- centered cubic, and face-centerec cubic cells. Assume that the spheres are of equa size and that they are only at the lattice points.
State which substance in each of these pairs you would expect to have the higher boiling point and explain why: (a) Ne or \(\mathrm{Xe},\) (b) \(\mathrm{CO}_{2}\) or \(\mathrm{CS}_{2},\) (c) \(\mathrm{CH}_{4}\) or \(\mathrm{Cl}_{2},\) (d) \(\mathrm{F}_{2}\) or \(\mathrm{LiF}\) (e) \(\mathrm{NH}_{3}\) or \(\mathrm{PH}_{3}\)
Ozone \(\left(\mathrm{O}_{3}\right)\) is a strong agent that can oxidize all the common metals except gold and platinum. A convenient test for ozone is based on its action on mercury. When exposed to ozone, mercury becomes dull looking and sticks to glass tubing (instead of flowing freely through it). Write a balanced equation for the reaction. What property of mercury is altered by its interaction with ozone?
The liquid-vapor boundary line in the phase diagram of any substance always stops abruptly at a certain point. Why?
A \(1.20-\mathrm{g}\) sample of water is injected into an evacuated \(5.00-\mathrm{L}\) flask at \(65^{\circ} \mathrm{C}\). What percentage of the water will be vapor when the system reaches equi librium? Assume ideal behavior of water vapor an that the volume of liquid water is negligible. The va por pressure of water at \(65^{\circ} \mathrm{C}\) is \(187.5 \mathrm{mmHg}\).
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