課程名稱︰普通化學乙上
課程性質︰系內必帶
課程教師︰金必耀
開課學院：工學院
開課系所︰土木工程學系
考試日期（年月日）︰2010/1/15
考試時限（分鐘）：110min
是否需發放獎勵金：是，謝謝
（如未明確表示，則不予發放）
試題 :
1. (10%) Use the rules of quantum numbers to determine which of the following
sets of numbers are not allowed. State why they violate the rules.
(a) n=2, l=2, m=0 ;(b) n=0, l=0, m=0 ;(c) n=7, l=0, m=0 ;(d) n=3, l=1, m=-1.
2. (10%) Write the electron configuration for the following elements: (a) Ar,
(b) Hg, (c) Sn, (d) Ce, (e) V.
3. (5%) For each of the following groups, which element should have the
smallest first ionization energy? (a) K, Mg, Na, (b) N, O, S, (c) Al, Ar, Si.
.
4. (5%) How do we explain the fact that the ionization energy of oxygen is less
than that of nitrogen?
5. (5%) Rank the following in order of decreasing size. F-, Mg2+, Na+, Ne, O2-.
6. (10%) Both ionic sodium floride and polymeric Teflon have extended, repeated
structure. Draw a picture of the two types of molecules and discuss the
differences in being that are depicted by your pictures.
7 .(5%) Sketch a graph of the potential energy of two atoms as a funtion of the
distance between them. On your graph, indicate how bond energy and bond
distance are defined.
8. (5%) Draw the Lewis structure of two resonance forms for ozone, O3. What
prediction can you make about the relative lengths of the O-O bonds?
9. (10%) Draw the Lewis structures for the following molecules: (a) XeF4,
(b) I3-, (c) ClO3-, (d) IF3.
10.(10%) What type of hybridixation would you expect for the carbon atom in
each of the following species? (a) CO, (b) CO2, (c) H2CO, (d) CH2F2.
11.(10%) Draw a molecule orbital energy level diagram for H2. Then explain in
molecular orbital terms the change in H-H internuclear distance that occur
as the molecular H2 is ionized first to H2+ and then to H2(2+).
12.(5%) State the postulates of the kinetic molecular theory of gases (gas
kinetic theory).
13.(10%) Given these relationships for average kinetic energy,
Ek=0.5m(u^2), and Ek=1.5RT/NA.
where m is molecular mass, u is rms speed, R=8.314J/(mol K) is the gas
constant, NA is Avogadro's constant, and T is absolute temperature,
calculate the rms speed of helium in winter (0度C) and in summer (30度C).
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