INTRODUCTION TO ELECTROCHEMISTRY

Assignment-1 1. How does the electrode potential change with ion concentration according to the Nernst equation in a battery? 2. Why is calibration needed when using a glass electrode for pH measurement in industry? 3. Explain the factors affecting uniform coating in gold electroplating and suggest methods to improve plating quality (Case Study: A manufacturer notices uneven gold plating on electronic connectors, with rough patches and inconsistent thickness). 4. What are the problems associated with using a Calomel electrode as a reference electrode, and what alternatives can be used in industry? (Case Study: A laboratory is using a Calomel electrode as a reference for electrochemical measurements, but faces potential drift and safety concerns due to mercury)

Polymers and Composites

Assignment Question: 1.Explain how size-dependent properties differ between nanomaterials and bulk materials in optical, electrical, and mechanical aspects. 2. List and briefly describe the four main types of nanomaterials with examples. 3. Discuss the role of nanotechnology in electronics, energy science, and medicine. Case Study Question: 1. Compare the functioning, advantages, disadvantages, and commercial uses of organic LEDs with conventional LEDs 2. Concepts of BioSynthesis in Nanomaterials 3. Construct a Ni-cd Battery