82. Which of the following is NOT a state function?
(A) entropy
(B) enthalpy
(C) internal energy
(D) heat
(E) temperature

22. 功(work)、焓(enthalpy)、熱量(heat)，這三個物理量中，有幾個屬於狀態函數(state function)？ (A) 0 (B) 1 (C) 2 (D) 3

42. 下列何者不是狀態函數(state function)? (A) 內能(internal) (B) 位能(potential energy) (C) 功(work) (D) 焓(enthalpy)

30. 下列敘述何者有誤？ (A) 黑斯熱反應定律 (Hess's law) 指出，可以透過個別反應方程式相加 (或相減) 及其 已知相對應的∆H 值相加 (或相減)，以得到總體反應的∆H 值 (B) 所有反應相對應的∆H 值必須在其標準狀態，亦即在個別熱焓量(焓，enthalpy)的絕 對值的狀態下，才能相加 (或相減) (C) 黑斯熱反應定律的基礎是熱焓量為狀態函數 (state function) (D) 狀態函數是和所採取的反應路徑無關的函數 (E) 系統作功 (δw)，功不是狀態函數

35. 下列那些為狀態函數？ (A) 功、熱 (B) 熱焓量、能量 (C) 功、熱、熱焓量 (D) 功、熱、熱焓量、能量

83. A metal ion in a high–spin octahedral complex has four more unpaired electrons than the same ion does in a low–spin octahedral complex. The metal ion could be: (A) V2+ (B) Cu2+ (C) Mn2+ (D) Cr3+ (E) Co2+

84. Which of the following coordination compounds will form a precipitate when treated with an aqueous solution of AgNO3? (A) [Cr(NH3)3Br3] (B) [Mo(Cl)2(NH3)4](NO3) (C) Na3[WCl6] (D) [Pt(NOlinear)2(OAc)2](Br)2 (E) None of the above.

85. Which of the following species is diamagnetic? (A) CN (B) B2 (C) O2 (D) All of the above. (E) None of the above.

86. Which of the lines in the figure below is the best representation of the relationship between the volume of a gas and its pressure, other factors remaining constant? (A) a (B) b (C) c (D) d (E) e

87. Sulfur tetrafluoride adopts a see-saw geometry with two axial F atoms with a F–S–F angle of about 180º and two equatorial F atoms at about 90º from the axial fluorines. Which statement most accurately describes the axial and equatorial S–F bonds? (A) The axial S–F bonds are longer because the two fluorine atoms must share bonding to the same orbital on sulfur. (B) The axial S–F bonds are longer because they experience greater repulsion from the other fluorine atoms in the molecule. (C) The equatorial S–F bonds are longer because the equatorial F–S–F bond angle is the smallest in the molecule. (D) The equatorial S–F bonds are longer because they experience greater repulsion from the lone pair on sulfur. (E) The equatorial S–F bonds are longer because they experience greater repulsion from two axial fluorine atoms.

88. According to the Haber-Bosch process, which statement is true? (A) The reaction to produce NH3 from H2 and N2 is reversible. (B) According to the Le Châtelier’s principle, the overall reaction is favorable to produce products in the state of high pressure. (C) Increasing the reaction temperature can accelerate the reaction to equilibrium. (D) Using Fe as a catalyst can accelerate the reaction to equilibrium, but cannot change the equilibrium between the reagents and products. (E) All statement are true.

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