國立高雄大學九十九學年度轉學招生考試試題(轉二年級)
科目：普通化學
考試時間：80 分鐘
系所：
應用化學系、化學工程及材料
是否使用計算機：是
工程學系
本科原始成績：100 分
< I > 單一選擇題(佔 50 分，共 25 題，每題 2 分，答錯不倒扣)
1. Quartz (SiO2) is a solid with a melting point of 1550°C. The bonding in quartz is best described
as
(A) covalent bonding. (B.) network attractions.
(C.) ionic bonding.
(D.) lattice energy.
(E) None of these choices is correct.
2. What is the highest oxidation state of chlorine in any of its compounds?
(A.) +3
(B.) +7 (C.) +1 (D.) -1 (E.) 0
3. Liquid ammonia (boiling point = -33.4°C) can be used as a refrigerant and heat transfer fluid.
How much energy is needed to heat 25.0 g of NH3(l) from -65.0°C to -12.0°C?
Specific heat capacity, NH3(l) : 4.7 J/(g · K)
Specific heat capacity, NH3(g): 2.2 J/(g · K)
Heat of vaporization: 23.5 kJ/mol
Molar mass, м: 17.0 g/mol
(A.) 5.5 kJ (B.) 6.3 kJ
(C.) 39 kJ
(D.) 340 kJ (E.) None of these choices is correct.
4. Examine the phase diagram for the substance Bogusium (Bo) and select the correct statement.
(A.) Bo(s) has a lower density than Bo(l).
(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.) Bo changes from a liquid to a gas as one follows the line from C to D.
(E.) None of these choices is correct.
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國立高雄大學九十九學年度轉學招生考試試題(轉二年級)
科目：普通化學
考試時間：80 分鐘
系所：
應用化學系、化學工程及材料
是否使用計算機：是
工程學系
本科原始成績：100 分
5.
A molecule with the formula AX3E uses _________ to form its bonds.
(A.) s and p atomic orbitals
(B.) sp hybrid orbitals.
(C.) sp2 hybrid orbitals
(D.) sp3 hybrid orbitals
(E.) None of these choices is correct.
6.
According to molecular orbital (MO) theory, the 12 outermost electrons in the O2 molecule are
distributed as follows:
(A.) 8 in bonding MOs, 4 in antibonding MOs.
(B.) 10 in bonding MOs, 2 in antibonding MOs.
(C.) 9 in bonding MOs, 3 in antibonding MOs.
(D.) 12 in bonding MOs, 0 in antibonding MOs.
(E.) None of these choices is correct.
7.
Calculate the lattice energy of magnesium sulfide from the data given below.
Mg(s) → Mg(g) ∆H° = 148 kJ/mol
Mg(g) → Mg2+(g) + 2e¯ ∆H° = 2186 kJ/mol
S8(s) → 8S(g) ∆H° = 2232 kJ/mol
S(g) + 2e¯ → S2¯(g) ∆H° = 450 kJ/mol
8Mg(s) + S8(s) → 8MgS(s) ∆H° = -2744 kJ/mol
Mg2+(g) + S2¯(g) → MgS(s) ∆H°lattice = ?
(A.) -3406 kJ/mol
(B.) -2720. kJ/mol
(C.) 2720. kJ/mol
(D.) 3406 kJ/mol
(E.) None of these choices is correct
8.
Which of the following sets of conditions could exist when two liquids which are completely
miscible in one another are mixed?
(A.) ∆Hsoln > 0, entropy of system decreases
(C.) ∆Hsoln ≈ 0, entropy change of system ≈ 0
(E.) None of these choices is correct.
9.
(B.) ∆Hsoln ≈ 0, entropy of system decreases
(D.) ∆Hsoln ≈ 0, entropy of system increases
A saturated solution of carbon dioxide in water contains 3.00 g of CO2 when the CO2 partial
pressure is 8.0 atm. What mass of CO2 will escape if the partial pressure is lowered to 3.2
atm?
(A.) 0.90 g
(B.) 1.20 g
(C.) 1.40 g
(D.) 1.80 g
(E.) None of these choices is
correct.
背面尚有試題
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國立高雄大學九十九學年度轉學招生考試試題(轉二年級)
科目：普通化學
考試時間：80 分鐘
系所：
應用化學系、化學工程及材料
是否使用計算機：是
工程學系
本科原始成績：100 分
10. Including cyclic compounds, how many possible isomers exist for C4H8?
(A.) 2 (B.) 4
(C.) 5
(D.) 6
(E.) 7
11. Select the correct name for this compound.
(A.) ortho-butylethylbenzene
(B.) meta-butylethylbenzene (C.) para-butylethylbenzene
(D.) 1-butyl-2-ethylcyclohexene (E.) None of these choices is correct.
12. Which compound, if any, will be optically active?
(A.)
(B.)
(C.)
(D.)
(E.) None of these choices is optically active.
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國立高雄大學九十九學年度轉學招生考試試題(轉二年級)
系所：
應用化學系、化學工程及材料
是否使用計算機：是
工程學系
本科原始成績：100 分
科目：普通化學
考試時間：80 分鐘
13. Given this equilibrium constant data at 25°C,
what is the value of Kc at this temperature for the reaction
2NOBr(g)
N2(g) + O2(g) + Br2(g)?
(C.) 1.0 × 1030
(A.) 2.4 × 10¯31 (B.) 9.6 × 10¯31
(E.) None of these choices is correct.
(D.) 4.2 × 1030
14. A reaction is first-order with respect to the reactant R. Which of the following plots will
produce a straight line?
(A.) [R] vs. 1/time
(D.) ln[R] vs. time
(B.) 1/[R] vs. time
(C.) [R]2 vs. time
(E) None of these choices is correct.
15. Consider the equilibrium reaction: H2(g) + Br2(g)
2HBr(g)
Which of the following correctly describes the relationship between Kc and Kp for the
reaction?
(A.) Kp = Kc/(RT)2
(B.) Kp = (RT)Kc (C.) Kp = (RT)2Kc (D.) Kp = Kc/RT
(E.) Kp = Kc
16. Calculate the number of oxygen atoms in 29.34 g of sodium sulfate, Na2SO4. (Mw(Na) = 23
g/mol, Mw(S) = 32 g/mol, Mw(O) = 16 g/mol)
(A.) 4.976 × 1023 O atoms
(D.) 2.915 × 1024 O atoms
(B.) 1.244 × 1023 O atoms (C.) 2.409 × 1024 O atoms
(E.) None of these choices is correct .
17. Balance the following redox equation using the smallest integers possible and select the
correct coefficient for the hydrogen sulfite ion, HSO3¯.
MnO4¯(aq) + HSO3¯(aq) + H+(aq) → Mn2+(aq) + SO42¯(aq) + H2O(l)
(A.) 10 (B.) 5
(C.) 3
(D.) 2
(E.) 1
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國立高雄大學九十九學年度轉學招生考試試題(轉二年級)
科目：普通化學
考試時間：80 分鐘
系所：
應用化學系、化學工程及材料
是否使用計算機：是
工程學系
本科原始成績：100 分
18. The line notation, Pt | H2(g) | H+(aq) || Cu2+(aq) | Cu(s), indicates that
(A.) Cu is the anode.
(B.) hydrogen gas (H2) is a product of the cell reaction.
(C.) copper metal is a product of the cell reaction.
(D.) Pt is the cathode.
(E.) None of these choices is correct.
19. The redox reaction of peroxydisulfate with iodide has been used for many years as part of the
iodine clock reaction which introduces students to kinetics. If E°cell = 1.587 V and E° of the
cathode half-cell is 0.536 V, what is E° of the anode half-cell?
S2O82¯(aq) + 2H+ + 2I¯(aq) → 2HSO4¯(aq) + I2(aq)
(A.) 2.123 V
(B.) -2.123 V
(C.) 1.051 V (D.) -1.051 V
(E.) None of these choices is correct.
20. Which of the following is necessary for a process to be spontaneous?
(A.) ΔHsys < 0
(B.) ΔSsys > 0
(C.) ΔSsurr< 0
(E.) None of these choices is correct.
21.
(D.) ΔGsys = 0
Examine the following half-reactions and select the strongest oxidizing agent among the
species listed.
(A.) Sr2+(aq)
(B.) Co2+(aq)
(C.) Fe2+(aq)
(D.) Fe(s)
(E.) Cr2+(aq)
22. Which relationship or statement best describes ΔS° for the following reaction?
CaO(s) + CO2(g) → CaCO3(s)
(A.) ΔS° ≈ 0 (B.) ΔS° < 0 (C.) ΔS° > 0 (D.) ΔS° = ΔH°/T
(E.) More information is needed to make a reasonable prediction.
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國立高雄大學九十九學年度轉學招生考試試題(轉二年級)
科目：普通化學
考試時間：80 分鐘
系所：
應用化學系、化學工程及材料
是否使用計算機：是
工程學系
本科原始成績：100 分
23. Calculate ΔS° for the reaction
SiCl4(g) + 2Mg(s) → 2MgCl2(s) + Si(s)
(A.) -254.96 J/K (B.) 198.02 J/K
(C.) -198.02 J/K
(E.) None of these choices is correct.
(D.) 254.96 J/K
24. According to VSEPR theory, a molecule with the general formula AX3E will have a _____
molecular shape.
(A.) bent
(B.) tetrahedral
(C.) trigonal pyramidal
(E.) None of these choices is correct.
(D.) trigonal planar
25. A system initially has an internal energy E of 501 J. It undergoes a process during which it
releases 111 J of heat energy to the surroundings, and does work of 222 J. What is the final
energy of the system, in J?
(A.) 0 J (B.) 390 J
(C.) 612 J
(D.) 168 J
(E.) 834 J .
< II > 計算題及問答題 (共佔50分, 共5題，每題10分)
1. A 7.17g sample of elemental sulfur is dissolved in 75.0 g of CS2 to give a solution whose freezing
point is -112.90℃. Use these data to calculate the molar mass of elemental surfur and thus the
formula of the dissolved Sn molecules (that is, what is the value of n?)
(The freezing point of pure CS2 is -111.5℃ and the freezing-point depression constant (Kf ) of
CS2 is 3.74 (℃/m), Mw(S) = 32 g/mol)
2. What is the pH of the solution after 25.00 mL of 0.200 M NaOH is added to 50.00 mL of 0.100 M
acetic acid (CH3COOH)?
(Ka = 1.74 x 10-5 for acetic acid and Kw = 1.00 x 10-14)
(log1.5=0.176, log2 =0.301, log2.5 =0.398, log3 =0.477, log 3.5 =0.544, log 4= 0.602)
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國立高雄大學九十九學年度轉學招生考試試題(轉二年級)
科目：普通化學
考試時間：80 分鐘
系所：
應用化學系、化學工程及材料
是否使用計算機：是
工程學系
本科原始成績：100 分
3. Because the consumption of alcoholic beverages adversely affects the performance of tasks that
require skill and judgment, in most countries it is illegal to drive while under the influence of
alcohol. In almost all U.S. states, a blood alcohol level of 0.08% by volume is considered
legally drunk. Higher levels cause acute intoxication (0.20%), unconsciousness (~0.30%), and
even death (~0.50%). The breathalyzer is a portable device that measures the ethanol
concentration in a person’s breath, which is directly proportional to the blood alcohol level. The
reaction used in the breathalyzer is the oxidation of ethanol by the dichromate ion:
When a measured volume (52.5 mL) of a suspect’s breath is bubbled through a solution of excess
K2Cr2O7 in dilute H2SO4, the ethanol is rapidly absorbed and oxidized to acetic acid by the
dichromate ions. In the process, the chromium atoms in some of the Cr2O72- ions are reduced
from Cr6+ to Cr3+. In the process of Ag+ ions that act as a catalyst, the reaction is complete in
less than a minute. Because the Cr2O72- ion (the reactant) is yellow-orange and the Cr3+ ion (the
product) forms a green solution, the amount of ethanol in the person’s breath (the limiting
reactant) can be determined quite accurately by comparing the color of the final solution with the
colors of standard solutions prepared with known amounts of ethanol.
A typical breathalyzer ampule contains 3.0 mL of a 0.25 mg/mL solution of K2Cr2O7 in 50%
H2SO4 as well as a fixed concentration of AgNO3 (typically 0.25 mg/mL is used for this purpose).
How many grams of ethanol must be present in 52.5 mL of a person’s breath to convert all the
Cr6+ to Cr3+ ? (Mw(K2Cr2O7) = 294.18 g/mol, Mw(C2H5OH) = 46.07 g/mol, 1g = 1000mg)
4 Calculate the standard free-energy change, ∆Go, at 25℃ for the reaction
H2(g) + O2(g)
H2O2(l)
At 25℃ the standard enthalpy change, ∆Ho, is -187.78 kJ/mol, and the absolute entropies of the
products and reactants are So(H2O2) = 109.6 J/(mol-K), So(O2) = 205.2 J/(mol-K) and So(H2) =
130.7 J/(mol-K). Is the reaction spontaneous as written?
5. A 1.00-mol sample of NOCl was placed in a 2.00-L reactor and heated to 227℃ until the system
reached equilibrium. The contents of the reactor were then analyzed and found to contain 0.056
mol of Cl2. Calculate K at this temperature. The equation for the decomposition of NOCl to
NO and Cl2 is
2NOCl(g)
2NO(g) + Cl2(g)
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