CH302 Practice Quiz 3.1. Consider four moleculesI) CFCl3II) CF4III) CF3ClIV) CH4Which of these exhibit only instantaneous dipole-dipole interactions?1. I only2. I and III only correct3. III only4. I, III, and IV only5. None of these 2. Which of the following exhibit strong hydrogen bonding?I) CHCl3II) CH4III) NH3 IV) PH3V) H21. I only2. III and IV only3. II, III, IV and V only4. III only correct5. All of them3 Arrange the IONIC compounds: NaCl; LiCl; AlCl3; BaBr2; BaCl2in order of increasing expected melting points.1. NaCl; LiCl, BaBr2, BaCl2, AlCl3 correct2. NaCl; LiCl; AlCl3; BaBr2; BaCl23. AlCl3, BaCl2, BaBr2, NaCl, LiCl4. NaCl; LiCl;; BaCl2; BaBr2 , AlCl34 Arrange the molecules CH3Cl; O2; H2O; CaCO3in order according to their boiling point, from highest boiling point to lowest boiling point1. CaCO3, H2O, CH3Cl, O2correct2. CH3Cl; O2; H2O; CaCO33. CH3Cl; O2; H2O; CaCO34. O2, CH3Cl, H2O, CaCO35. Which of the following statements about a physical property is not true.1. Evaporation is a surface phenomenon.2. Surface tension is a surface phenomenon (sometimes I feel silly)3. Capillary action occurs at the interface of between a solid surface and a liquid.4. Boiling occurs at the interface between the liquid and vapor phase. correct5. Vapor pressure is a vapor phenomenon. (sometimes I feel silly.)6. Which of the following is an example of an endothermic phase change?1. ice cream freezing when I add liquid nitrogen to milk and sugar2. a balloon exploding3. water vapor evaporating from your skin while running a marathon correct4. none of these7. What statement about the PT phase diagram below is true? l s P gT1. The compound is NOT water. correct2. The triple point occurs near the boiling point of water.3. The solid lines represent system transitions that are not at equilibrium.4. The point where all three phases can exist simultaneously is the critical point.5. The solid is less dense than the liquid.8. The specific heat of water is 1.00 cal/goC, the heat of vaporization of water is 540 cal/g, andthe heat of fusion of water is 80 cal/g. How much heat would be required to convert 50 grams ofsteam at 100oC to 50 grams of water at 75oC?1. 28.25 kcal correct2. 28250 kcal3. 27000 cal4. 1.25 kcal5. 1250
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