talent 100
TRANSCRIPT
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REVIEW OF LAST WEEK
ARGUMENTS FOR U SING CELLULOSE FOR THE MANUFACTURE OF
PETROCHEMICALS
•
E 5
• C ..
• C , . I .
ARGUMENTS AGAINST U SING CELLULOSE FOR THE MANUFACTURE OF
PETROCHEMICALS
• ,
..
• .
.
•
.
• C
.
PHB – A BIOPOLYMER
• HB .
• HB .
.
• HB , ., ,
• HB .
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REACTIONS INVOLVING ETHANOL
• E . :
+
• E, ,
:
+
U SES OF ETHANOL
• E .
. ..
• ...
•
• : .
FERMENTATION
•
F
.
• :
2 + 2
•
•
A ,
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ADVANTAGES OF ETHANOL AS AN ALTERNATIVE FUEL
• I
• I
• E E10
DISADVANTAGES OF ETHANOL AS AN ALTERNATIVE FUEL
•
• A 10%,
MOLAR HEAT OF COMBUSTION
• ..
• :
molar heat of combustion =
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. F ,
,
.
PRACTICAL
FERMENTATION
A:
.
A: .
,
.
: 250 , 500 , 50
, , 20 (10% /), 1 (
), , , , .
1.
1 .
2. 20 .
3. I .
4. 500 3035C ( )
5. , .
6.
C .
.
7. .
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500
(30 35C)
+ G
250
• . I
.
• A 1 , . A
.
• A 2 , . ,
. .
• .
()
10:30 26/10 238.410
10:30 F 27/10 235.217
1:30 30/10 234.217
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C
Mass of COlost = 238.410 234.217
= 4.193g
,
=4.193
44.01
= 0.095
ℎ =
= 0.095
= 0.095 x 46.07 = 4.39g
D
.
(
C2 ).
, . A
.
H, . I
,
C . :
• E .
• ( 1 )
• A , .
•
C2 .
.
A C2
.
C:
.
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1 (7 )
I A
356.32. 351.17. A
. F:
) 1
)
1
)
1
) 2
) 2
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METAL DISPLACEMENT REACTIONS
.
. F
:
:
→ + 2
:
+ 2 →
, :
+ →
+
. 2
. DACD
A
.. .
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,
B ? .
; .
I :
A . F
.
, . ,
.
H, , .
, .
.
..
+ 2 →
+
I , .
, .
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1
?
.
.
:
→ + 2
2 + 2 → 2
:
2 + →
+ 2
.
2
? .
. H
.
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2 (8 )
D
( ):
) 2
) 2
)
2
)
2
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O XIDATION AND REDUCTION
.
/ .
. , , , , , .
F , , .
+3, 2. I ,
2, +4.
I ,
.
3
?
2.
, 2.
, 2.
= . .
2 + 7−2 = −2.
2 − 14 = −2
2 = 12, = 6.
+6.
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3 (1 )
?
A
D .
.
. .
I , ,
. .
, .
.
. A
: ( );
( )
( )
.
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A .
I .
GALVANIC CELLS
A
. A . I
.
( ) ,
.
.
HOW GALVANIC CELLS OPERATE
. C
.
. A :
→ + 2
:
→ + 2
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Zn/ Zn // Cu
/Cu
.
.
.
I , .
I . , :
. A
.
.
,
.
A ,
A D CA.
A
I , AA .
:
A: . I () .
C: . I (+) .
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THE SALT BRIDGE
,
. ,
.
,
. , .
.
, . I
;
. I :
F :
A
C
.
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4 (3 )
G
) D 1
) D 1
)
I ? 1
: C
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5 (36 )
:
1. C .
2.
3.
4.
I (II) I (II)
D :
) ? 1
) ? 1
)
3
)
D 4
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BA
C
PRACTICAL
INVESTIGATING THE CONDITIONS NEEDED FOR A GALVANIC CELL
A:
• 2 .
• 2 .
• A
• 1 /
• 1 /
•
150 B
• E
• D
•
•
• A
A:
.
.
1. .
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2.
C 6 A, B A, B
C .
3.
A B C
1 C D
2 C I
3 C 1 24
4 C 1 24 , A
B
5 1 24
6 C 1 24
4.
5.
A B C
1 C D
2 C 1 0.75
3 C 1 24 1
0.95 .
4 C 1 24 ,
A
B
0
5 1 24
6 C 1 24
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D
C 1 C 2 3 C 1 .
.
. I
.
A C 4, .
. I
C 5 .
. I
.
I
.
.
C:
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CALCULATING THEORETICAL POTENTIALS PRODUCED B Y
GALVANIC CELLS
7. H :
1
1 B 2007
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. I
.
.
A
. C,
(.. ).
A STANDARD H YDROGEN ELECTRODE CONSISTS OF:
• A 1.000/ HC (
).
• H 100.0
• 25C
I
. ,
.
A,
.
/
. I .
(
):
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1.
I :
+ → ,
= +0.80
+ 2 → ,
= −0.76
2. , .
(
, . ,
, ):
+ → ,
= +0.80
3.
.
(
):
→ + 2, = 0.76
:
2 + → 2 +
, . I ,
4. C .
= 0.80 + 0.76
= 1.56
F
. , EF
0.80 2 .
. I
3 .
EMF = EMF + EMF
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7
8 :
1. A , . ,
.
2. A , . ,
.
4
F
.
:
+ 2
→ ,
= −0.76
+ 2 →
= −2.36
F
:
→ + 2 = 2.36
:
+ → +
, :
= 2.36 + −0.76
= 1.6
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6 (3 )
C .
A :
) (II) (II) 1
) 1
)
(II) 1
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PRACTICAL
POTENTIALS OF DIFFERENT METAL COMBINATIONS IN ELECTROLYTE
A:
.
•
•
•
•
•
1
• 1
• 1
• 1
• 150
• C
•
•
• E
• A
• E
A:
. D .
, .
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BA
A B
1. C .
2. :
3.
C
C B A B B1 C + 1 C4 + 1 (3)2
2 + 1 4 + 1 (3)2
3 + 1 4 + 1 (3)2
4 C + 1 C4 + 1 4
5 + 1 4 C + 1 C4
6 + 1 4 + 1 4
4.
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C B A B B
1 C + 1 C4 + 1 (3)2 0.48
2 + 1 4 + 1 (3)2 1.4
3 + 1 4 + 1 (3)2 0.6
4 C + 1 C4 + 1 4 1.95
5 + 1 4 C + 1 C4 0.8
6 + 1 4 + 1 4 0.9
7 (30 )
F :
)
F 1
) 2
) 1
) C 1
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.
:
•
• 1 (1 ),
.. 1.000/ (4
), 25C, 100.0.
• 0.1
. ,
.
• .
.
• .
C:
.