64. Which of the following statements is true about the following electrochemical cell?
(A) The cell reaction is spontaneous with a standard cell potential of 0.06 V.
(B) The cell reaction is nonspontaneous with a standard cell potential of –5.80 V.
(C) The cell reaction is nonspontaneous with a standard cell potential of –0.06 V.
(D) The cell reaction is spontaneous with a standard cell potential of 5.80 V.
(E) The cell is at equilibrium.

60. In process ab, 20 J of heat is added to the system. In process bd, 80 J of heat is added to the system. Find the internal energy change ΔU in process abd. (A) 21 J (B) 59 J (C) 79 J (D) 101 J (E) 121 J

複選題61. Regarding the reactions of organic compounds, which of the following statements is NOT true?(一律送分，請勾選ABCDE) (A) The reaction of benzene and chloromethane can produce toluene. (B) Methanol is prepared in industry by the hydrogenation of carbon dioxide. (C) The commercial production of ethanol is carried out by the reaction of water with ethylene. (D) Aldehyde can be produced commercially by the oxidation of primary alcohol. (E) Ketone can be produced commercially by the oxidation of secondary alcohol.

62. Consider the following data concerning the equation: (A) Rate = k[H2O2][I– ][H+ ] (B) Rate = k[H2O2]2 [I– ]2 [H+ ]2 (C) Rate = k[I– ][H+ ] (D) Rate = k[H2O2][H+ ] (E) Rate = k[H2O2][I– ]

63. Which of the following statements are true? A catalyst can act in chemical reaction to: I. Lower the activation energy. II. Change the equilibrium concentration of the products. III. Decrease ΔE for the reaction. IV. Change the order of the reaction. V. Provide a new path for the reaction. (A) I, II, and III (B) II and III (C) II and V (D) I and V (E) III and IV

65. Examine the phase diagram for the substance Bogusium (Bo) and select the correct statement. (A) Bo changes from a liquid to a gas as one follows the line from C to D. (B) The triple point for Bo is at a higher temperature than the melting point for Bo. (C) Bo changes from a solid to a liquid as one follows the line from C to D. (D) Point B represents the critical temperature and pressure for Bo. (E) Bo(s) has a lower density than Bo(l).

66. A 0.20 M solution of MgSO4 has an observed osmotic pressure of 6.0 atm at 25°C. Determine the observed van't Hoff factor for this experiment. (A) 1.23 (B) 2.00 (C) 1.66 (D) 1.80 (E) 1.45

67. Adipic acid contains 49.32% C, 43.84% O, and 6.85% H by mass. What is the empirical formula? (A) C3H5O2 (B) C2HO3 (C) C2H5O4 (D) C3HO3 (E) C3H3O4

68. On a new temperature scale (°L), water boils at 155.00°L and freezes at –10.00°L. Calculate the normal human body temperature using this temperature scale. On the Celsius scale, normal human body temperature is 37.0°C, and water boils at 100.0°C and freezes at 0.0°C. (A) 57.30°L (B) 47.35°L (C) 51.05°L (D) 61.05°L (E) 41.05°L

69. When the following equation C2H5OH + O2⇌ CO2 + H2O is balanced, what are the coefficients? (A) 2, 3, 1, 4 (B) 1, 3, 2, 3 (C) 1, 1, 1, 1 (D) 1, 2, 3, 4 (E) 1, 2, 2, 2

70. To form a buffer solution with pH = 9.0, how many moles of NH4Cl should be added to 3.0 L of 0.20 M NH3(aq) at 25ºC? (Kb of ammonia = 1.8 × 10‒5 ; assuming the volume of solution does not change after adding NH4Cl) (A) 0.36 (B) 0.72 (C) 1.08 (D) 3.6 (E) None of the above.