Note:
These questions are helpful for the preparation of exams, it doesn't mean that you should prepare only this.
Prepare all units completely and then go with this Question Bank.
All the Best
Unit
3 Electrochemistry
1. Explain
the thermodynamics of electrified interface using important equations.
2. Write
the Lippman’s equation for surface excess and explain each term.
3. Discuss
the structure of electrified interface with diagram.
4. Explain
the ion solvent interaction in cell.
5. Derive
the Debye-Huckel-Onsager equation.
6. Explain
Bockris-Devanathan theory.
7. Define
exchange current density.
8. Write
a note on exchange current density.
9. What
is Over Potential? Explain various types of Over Potential. or
What is Over Voltage?
Explain various types of Over Voltage. or
What is Bubble Over Voltage?
Explain various types of Bubble Over Voltage.
10.
What are the factors
affecting on over voltage?
11.
Write a note on Butler-Volmer
equation.
12.
Explain Tafel plots and
Tafel equations.
13.
What are the
application of Electrochemistry?
14.
Write only Butler-Volmer
equation.
15.
Explain the Helmholtz
Electrical Double Layer model.
16.
Explain the Gouy Chapman
Electrical Double Layer model.
17.
Explain the Stern
Electrical Double Layer model.
Unit
4 Surface Tension
1.
Explain surface
tension.
2.
Give brief account on
surfactants.
3.
Classify various
surface active agents (with 3 examples of each).
4.
Derive young Laplace
equation.
5.
Write a note on
cationic and anionic surfactant (with 3 examples of each).
6.
Explain: critical
micelle concentration (CMC).
7.
What are the factors
affecting on CMC?
8.
Explain in detail: thermodynamics
of micelization.
9.
Explain various CMC
curves.
10. Discuss
the Mass Action model and Phase separation model for micelization.
11. What
is a role of surfactants?
12. Explain
capillary action.
13. Why
mercury does not wet the glass, but water wets?
14. Write
the Kelvin equation.
15. A
sample of chloroform rise to a height of 3.67 cm at 20° C in a capillary tube
having an inside radius of 0.01 cm. what is the surface tension of chloroform
at this temperature? Density of chloroform is 1.476 g/cm3
16.
Find out the radius of capillary in which water is rice up to 3 mm height.
Surface tension of water = 0.07259 Kg/S2, density of water = 1000
Kg/m3, gravitational acceleration = 9.8 m/s2
17.
Estimate the height of water insdie the capillary tube at 0.5 mm radius,
surface tension is 72 mN/m and density is 995.6 Kg/m3 and contact
angle θ = 0°
18.
Calculate the pressure inside a 1μm diameter droplet of water in air at 293 K and 1 atm pressure given that
surface tension of water 72.8×10-3 N/m
19.
Find out the radius of capillary in which water is rice up to 3 mm height.
Surface tension of water = 0.07259 Kg/S2, density of water = 1000
Kg/m3, gravitational acceleration = 9.8 m/s2
20.
Find out the radius of capillary in which methanol is rice up to 0.30 mm
height. Surface tension of water = 0.0227 N/m, density of methanol = 786.2 Kg/m3,
gravitational acceleration = 9.8 m/s2 and contact angle is 0°.
21.
Find out the radius of capillary in which Hg is fall down to 0.60 mm
height. Surface tension of Hg = 0.485 N/m, density of Hg = 13600 Kg/m3,
gravitational acceleration = 9.8 m/s2 and contact angle is 130°.
All the Best
In the exam attempt all questions.
Write in the proper sequence.
Use a diagram or chart to explain your theory.
Make the answer attractive.
Write Pointwise.
Don't attempt extra/or questions, they consume your time and not consider in the final total marks.
Trust in yourself and Never do copy from others.
Wish you all the Best.