課程名稱︰普通化學甲(下)
課程性質︰物理系大一必帶
課程教師︰陸駿逸
開課學院：理學院
開課系所︰物理系
考試日期（年月日）︰99/06/23
考試時限（分鐘）：120分鐘
是否需發放獎勵金：是
（如未明確表示，則不予發放）
試題 :
1.(15 pts)You can burn the fuel in the heat engine to export work.
Alternatively, you can use the electrochemistry fuel cells to produce
the work. Which method has the higher theoretical efficiency ? Explain.
2.(10 pts)How do you separate the Al3+ ion and Fe3+ in an aqueous solution ?
3.(10 pts)Predict the relative magnitudes of the pKa's for
I(OH) , IO2(OH) , IO(OH)5 .
4.(15 pts)Estimate the number of collisions per second between the N2
molecules in this room at 300K .(diameter of N2 is 3*10^-10 m)
(kB=1.38*10^-23 J/K)
5.(15 pts)The suspension rods have the isotropic-nematic transition. Why is
that the nematic phase appears at the high density an not rhe other way round?
6.(15 pts)To help the globular (spherical) protein to form crystal, one
may add the non-absorbing polymer to produce the depletion attractions
between the proteins. How do you control the strength of the attraction?
How do you control the range of the attraction?
7.(20 pts)The enzyme kinetics often encounter the reaction mechanism:
E + S ＝ ES ("＝"表示正逆反應)
ES ＝ E + P
Use the steady state approximation on the complex ES to obtain the the
reaction rate equation (the Michaelis-Menten equation).
8.(20 pts)The older NMR machines use the continuous wave method to measure
the spectrum, whereas the recent NMR machines use the pulse method to get
the spectrum. Briefly describe the two methods. Explain that how do you
get the signals, and what is the relation between the measured signals
and the spectrum.
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