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Engineering Chemistry

 # Engineering Chemistry ## Unit I: Atomic and Molecular Structure & Advanced Materials (8 Lectures) ### A. Molecular Orbitals 1. Molecular Orbital Theory    - Postulates and principles    - LCAO (Linear Combination of Atomic Orbitals)    - Bonding and antibonding orbitals    - Bond order calculation    - Magnetic properties 2. Applications to Molecules    - Homonuclear diatomic molecules    - Heteronuclear diatomic molecules    - Electronic configurations and properties ### B. Chemistry of Advanced Materials 1. Liquid Crystals    - Classification (Thermotropic, Lyotropic)    - Properties and characteristics    - Types (Nematic, Smectic, Cholesteric)    - Industrial applications    - Liquid crystal polymers and elastomers 2. Graphite and Fullerene    - Structure and properties    - Applications    - Carbon nanotubes (CNT...
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The scientific method is a systematic and logical approach to understanding the natural world through empirical observation, experimentation, and the formulation and testing of hypotheses and theories. The scientific method is a step-by-step approach in studying natural phenomena and establishing laws which govern these phenomena. Any scientific method involves the following general features. (i) Systematic observation (ii) Controlled experimentation (iii) Qualitative and quantitative reasoning (iv) Mathematical modeling (v) Prediction and verification or falsification of theories (i) Systematic observation: Scientific inquiry begins with careful and methodical observation of natural phenomena. This involves gathering data through various means, such as direct observation, measurement, or using specialized instruments, to collect qualitative and quantitative information about the phenomenon under study. (ii) Controlled experimentation: After making observations, scientists design and c...

The duty of every citizen of India to develop scientific temper

According to part IV Article 51A (h) of Indian Constitution “It shall be the duty of every citizen of India to develop scientific temper, humanism and spirit of inquiry and reform’’. This is the aim of our Science Education. The directive principle mentioned in Article 51A(h) of the Indian Constitution, which states that " It shall be the duty of every citizen of India to develop scientific temper, humanism and spirit of inquiry and reform ," is indeed a guiding principle for the aim of science education in India. This constitutional provision highlights the importance of inculcating certain values and attitudes among the citizens of India, which are crucial for the progress and development of the nation. Let's break down the key elements of this directive and how they relate to the aims of science education: 1. Develop scientific temper:    - Science education should foster a scientific temper, which involves cultivating a rational, objective, and evidence-based approac...

The Timeless Value of Knowledge: A Treasure Beyond Compare

नास्ति विद्यासमो बन्धुर्नास्ति विद्यासमः सुहृत्। नास्ति विद्यासमं वित्तं नास्ति विद्यासमं सुखम्॥  विद्या जैसा बंधु नहीं, विद्या जैसा मित्र नहीं, (और) विद्या जैसा अन्य कोई धन या सुख नहीं ।  There is no friend, no companion, no wealth or no bliss as great as Vidya (knowledge). In a world obsessed with fleeting pleasures, material possessions, and the pursuit of external validation, there exists a treasure far more precious –  knowledge. The timeless wisdom encapsulated in the quote, "There is no friend, no companion, no wealth or no bliss as great as knowledge," reminds us of the transformative power that lies within the pursuit of understanding. Knowledge: A Loyal Companion for Life Unlike friendships that may wax and wane or companions who might drift apart, knowledge is a constant presence. It journeys with us through every stage of life, offering solace in adversity and igniting inspiration when challenges arise. Knowledge shapes our perspectives, expands our world, and...

Unveiling the Essence of Chemistry: A Key Player in Interdisciplinary Research

Introduction: Chemistry, often referred to as the central science, serves as the bridge that connects the physical sciences, life sciences, and even engineering disciplines. Its fundamental principles govern the composition, structure, properties, and interactions of matter, making it a cornerstone of scientific exploration and discovery. In the realm of interdisciplinary research, chemistry plays a pivotal role in unlocking new frontiers and addressing complex challenges that require a holistic approach. Let's delve into the essence of chemistry and its importance in fostering collaborative efforts across diverse fields. Understanding Chemistry: At its core, chemistry is the study of matter and the transformations it undergoes. From the structure of atoms and molecules to the mechanisms of chemical reactions, chemistry provides a framework for understanding the world at the molecular level. By exploring the properties and behaviors of substances, chemists can elucidate the underly...

Exploring the Wonders of Chemistry in Space

Introduction: Chemistry is the fundamental science that bridges the gap between the basic building blocks of matter and the vast complexities of the universe. When we look beyond our planet and into the intriguing realm of space, we discover a whole new dimension where chemistry plays a crucial role in shaping and understanding the cosmos. From the composition of stars and planets to the formation of complex molecules in interstellar space, the study of chemistry in space unveils a myriad of fascinating phenomena that continue to capture the curiosity of scientists and space enthusiasts alike. Chemistry of the Cosmos: One of the most captivating aspects of chemistry in space is the composition of celestial bodies. Stars, for example, are gigantic fusion reactors where hydrogen atoms fuse together to form helium, releasing tremendous amounts of energy in the process. This nuclear fusion process not only powers the star but also gives rise to heavier elements through nuclear reactions, u...

Key Points on Chromatography Techniques and Their Principles

Chromatography is a powerful analytical technique used to separate and analyze complex mixtures. This post will provide an overview of some common chromatography methods, their principles, steps, uses and examples. What is Chromatography? Chromatography is a laboratory technique in which a mixture is separated into its individual components. It relies on the differential distribution of the sample components between a moving fluid mobile phase and a stationary phase to achieve separation. Chromatography Definition: Chromatography is a laboratory technique for the separation of a mixture into its constituent parts.  Stationary Phase : The stationary phase is the immobile phase fixed in place in a chromatography column. It can be a solid or liquid. Mobile Phase: The mobile phase is the solvent that moves through the chromatography column carrying the sample.  1. Affinity Chromatography - Principle: Based on specific biological interactions between antibody and antigen, enzyme an...