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08 药学专业物理化学课件之五 PowerPoint PPT Presentation


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08 药学专业物理化学课件之五. 第五章 电化学. 电化学 是研究 化学能 与 电能 之间相互转化以及转化过程中有关规律的科学。. 主要内容:. ( 1 )电解质溶液理论. ( 2 )电化学平衡. ( 3 )电极过程动力学. ( 4 )实用电化学. 电解池. 电能 化学能. 原电池. 第一节 电解质溶液的导电性质. 一、电解质溶液的导电性质. 1 、导电体 / 导体 :能够导电的物质. 电子导体 :. 靠自由电子的定向运动而导电,如金属和石墨。. 依靠离子的定向运动而导电,如电解质溶液和熔融的电解质。. 离子导体 :.

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08 药学专业物理化学课件之五

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08

08


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1

2

3

4


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1/


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Cl2

H2

e

e

e

e

H+

H+

Cl-

Cl-

HCl

HCl


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1.

2.


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1

2n


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Qn:

M


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A

B

A

B


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A

B

A

B


08

2

1


08

t

2

t-+t+=1


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08

1m1m2

1. L

2.


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1m

1m


08

3

1m1mol


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1mol 1mol 2

, .


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08

KCl

cell constant


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KOH

1.

KCl


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.

1mol


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Kohlrausch


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08


08

2

HClHAc

3.

11


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1


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(2)

(1)


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OstwaldOstwaldOstwalds dilution law

(2)

AB


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1

3

2


08

4


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2.

3.


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(-)Zn(s)ZnSO4(1molkg1) CuSO4(1mol kg1)Cu(s)(+)

1.,

2.(ap)(gls);

3.I, II .

4.

Cu-Zn


08

.

1.


08


08

+

,

Ex = IRAC

EN = IRAC

I

I

C

C

A

B

+

+

.

.

.

.


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CdSO4

CdSO4 (8/3)H2O

Hg+Hg2SO4

Hg

Cd-Hg

+

2.


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, , .


08

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

x

10-10m

10-10 ~ 10-6m


08

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

b () > b ()

() < ()


08

KCl


08


08

1

2

3

4

5


08

1

2


08


08

END


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