課程名稱︰普通化學丙
課程性質︰必修
課程教師︰周必泰
開課學院：醫學院
開課系所︰醫學系
考試日期（年月日）︰1000105
考試時限（分鐘）：30分
是否需發放獎勵金：是~謝謝
試題 :
Quiz 3 General Chemistry Chapter 16(1/5,2011) (60 points)
1.Explain two types of defects created in crystalline ionic solida (1)Schottky
defects and (2)Frenkel defects.(10)
2.(習題57題)The band gap in aluminum phosphide(AlP) is 2.5 electron-volts(the
charge of electon is 1.6*10^-19 Coulomb). What wavelength of light is emitted
by an AlP diode?(10)
3.(習題51題)A. Use the band model to explain how conductors and seminconductors
differ as to the effect of temperature on electrical conductivity.(10) B.
Using silicon seminconductors as a model, define the n-type and p-type
seminconductors.(10)
4.The phase diagram for water in a close system is shown below, in which points
A-f represent the condition of water at a specific pressure and temperature.
Please answer the following question.
(1)Where is triple point? And how many degree of freedom in the triple point?
(5)
(2)Which point indicates that the density of gas and liquid is identical?(5)
(3)Which point represents the solid-liquid-gas equilibrium?(5)
(4)Explain the negative slope for the line B-E(5)
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