Electrochemistry

1. Calculate the Electrode potential of Zinc electrode when it is dipped in Zn2+ solution of 0.015 M Concentration at 298 K. The standard Electrode potential (E°) is E° (Zn2+/Zn) = -0.76 V 2.(a) Using the electrochemical series, predict whether the following reaction will occur spontaneously at standard conditions: Zn(s)+Cu2+(aq) → Zn2+(aq)+Cu(s) (b) Justify your answer by calculating the standard cell potential for the reaction. 3.Discuss role of Electrochemical series in identifying suitable electrodes for electrochemical cells and batteries. Give examples of how this knowledge is applied in real-life applications like the lithium-ion battery.

12

Nanomaterial

1. Distinguish molecules, nanomaterials and bulk materials 2. Discuss the preparation, properties and types of carbon nanotubes in detail 3. Evaluate how nanosized material is synthesized using solvothermal and laser ablation method. 4. Explain in detail about sol gel method of synthesizing nanomaterials 5. Explain the applications of nanotechnology in engineering, energy science and medicine

28

Electrochemical power sources

1. What type of cell is lead-acid battery? Construct a Lead acid battery with Neat and labelled diagram, explain it working with discharging and charging chemical reactions and Mention its few applications 2. Illustrate the construction and working of Zinc-Air battery with a neat diagram 3. Discuss about the construction and working of battery used in laptops and Mobile phones. 4. With a neat diagram discuss the construction and working of Super capacitors 5. Explain how Hydrogen can be separated from water and used as fuel.