[3] The following Figure is the electrocapillary curves (A) and differential capacitance curves (B) for mercury in contact with 0.5 M Na₂SO4 in the presence and absence of n-heptanol. (A) Na SO, AL Na,SO, C,H,OH 10 dynes/cm 440 420- 400 360 340- يلا Na₂SO, Na SO C,H, OH
[3] The following Figure is the electrocapillary curves (A) and differential capacitance curves (B) for mercury in contact with 0.5 M Na₂SO4 in the presence and absence of n-heptanol. (A) Na SO, AL Na,SO, C,H,OH 10 dynes/cm 440 420- 400 360 340- يلا Na₂SO, Na SO C,H, OH
Chapter93: Refractometry
Section: Chapter Questions
Problem 1P
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![[3] The following Figure is the electrocapillary curves (A) and differential capacitance curves (B) for mercury in contact
with 0.5 M Na,SO4 in the presence and absence of n-heptanol .
440-
(A)
(B)
420
Na,So.
400
Na, So,
CHOH
360
Na so,
20
340-
Na So,
CH,OH
10
320
0.4
0.8
12
1.6
20
24
0.4
0.8
1.2
-EV ex NCE)
1.6
2.0
-EV e NCE
(a) How do the curves in figure (A) relate to those in figure (B)?
(b) What implications can be derived from the flat region in the electrocapillary curves in the presence of n-heptyl alcohol?
(c) If we measure the electrocapillary curve of mercury in contact with 0.5 M Na,SO4 at higher temperature, what changes
in the curve can be observed? Try to give explanation of these changes.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc5db1628-dc8e-462c-8278-dd1e4808b311%2F97b5e7c7-1f23-4c70-8283-9fffa450d7a5%2F2lgiy3o_processed.jpeg&w=3840&q=75)
Transcribed Image Text:[3] The following Figure is the electrocapillary curves (A) and differential capacitance curves (B) for mercury in contact
with 0.5 M Na,SO4 in the presence and absence of n-heptanol .
440-
(A)
(B)
420
Na,So.
400
Na, So,
CHOH
360
Na so,
20
340-
Na So,
CH,OH
10
320
0.4
0.8
12
1.6
20
24
0.4
0.8
1.2
-EV ex NCE)
1.6
2.0
-EV e NCE
(a) How do the curves in figure (A) relate to those in figure (B)?
(b) What implications can be derived from the flat region in the electrocapillary curves in the presence of n-heptyl alcohol?
(c) If we measure the electrocapillary curve of mercury in contact with 0.5 M Na,SO4 at higher temperature, what changes
in the curve can be observed? Try to give explanation of these changes.
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VIEWStep 3: Relationship between electrocapillary curves (A) and differential capacitance curves (B)
VIEWStep 4: Effect of flat area on electrocapillary curves in the presence of n-heptanol
VIEWStep 5: Changes in electrocapillary curve at higher temperature with 0.5 M Na2SO4
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