This is the penultimate draft of C106 Exam 2; Fall 2008. It contains Ch14 problems, which will not be on the C116 E2. EXAM PROBLEM 1 ANSWER = A What is the strongest intermolecular force present in the following substance in the liquid or solid state: H C O N H H A. Hydrogen bonding B. Covalent bonding C. Ion-ion interaction D. Dipole-dipole interaction E. London (induced dipole - induced dipole) interaction EXAM PROBLEM 2. ANSWER = A The following molecules are gases at room temperature: Ar, Cl 2 , N 2 , O 2 , and SiH 4 . Which one will have the highest boiling point? A. Cl 2 B. Ar C. N 2 D. SiH 4 E. O 2 EXAM PROBLEM 3. ANSWER = A Ammonia, NH 3 (molecular weight 17.03 g/mol), is used as a refrigerant. At its boiling point of -33 °C, the enthalpy of vaporization of ammonia is 23.3 kJ/mol. How much heat is required to vaporize 125. g of ammonia at -33 °C? A. 171 kJ B. 211 kJ C. 242 kJ D. 2.91(10 ...