Engineering Chemistry and Environmental Science Question Papers

About Chemical engineering : chemical engineering and environmental science is a branch of engineering that applies physical sciences (physics and chemistry), life sciences (microbiology and biochemistry), together with applied mathematics and economics to produce, transform, transport, and properly use chemicals, materials and energy. A chemical engineer designs large-scale processes that convert chemicals, raw materials, living cells, microorganisms and energy into useful forms and products.Chemical engineers are involved in many aspects of plant design and operation, including safety and hazard assessments, process design and analysis, control engineering, chemical reaction engineering, construction specification and operating instructions.

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More About Chemical engineering and Environmental science: 

Chemical engineering emerged upon the development of unit operations, a fundamental concept of the discipline of chemical engineering. Most authors agree that Davis invented the concept of unit operations if not substantially developed it. He gave a series of lectures on unit operations at the Manchester Technical School (later part of the University of Manchester) in 1887, considered to be one of the earliest such about chemical engineering.

The syllabus of this subject consist of following toics:

Polymer science : Polymer science or macromolecular science is a subfield of materials science concerned with polymers, primarily synthetic polymers such as plasticsand elastomers. The field of polymer science includes researchers in multiple disciplines including chemistry, physics, and engineering.

Abrasive and Adhesive: An abrasive is a material, often a mineral, that is used to shape or finish a workpiece through rubbing. which leads to part of the workpiece being worn away by friction. While finishing a material often means polishing it to gain a smooth, reflective surface, the process can also involve roughening as in satin, matte or beaded finishes. In short, the ceramics which are used to cut, grind and polish other softer materials are known as abrasives.  An adhesive, also known as glue, cement, mucilage, or paste,is any non metallic substance applied to one surface, or both surfaces, of two separate items that binds them together and resists their separationAdjectives may be used in conjunction with the word “adhesive” to describe properties based on the substance’s physical or chemical form, the type of materials joined, or conditions under which it is applied.

Corrosion  science and lubrication: a natural process, which converts a refined metal to a more chemically-stable form, such as its oxide, hydroxide, orsulfide. It is the gradual destruction of materials (usually metals) by chemical and/or electrochemical reaction with their environment. Corrosion engineering is the field dedicated to controlling and stopping corrosion. A lubricant is a substance, usually organic, introduced to reduce friction between surfaces in mutual contact, which ultimately reduces the heat generated when the surfaces move. It may also have the function of transmitting forces, transporting foreign particles, or heating or cooling the surfaces. The property of reducing friction is known as lubricity.

Chemical and electrochemical energy sources : In this topic the introduction and classification of chemical energy and their sources are explained.

Environmental chemistry : Environmental chemistry is the scientific study of the chemical and biochemical phenomena that occur in natural places. It should not be confused with green chemistry, which seeks to reduce potential pollution at its source. It can be defined as the study of the sources, reactions, transport, effects, and fates of chemical species in the air, soil, and water environments; and the effect of human activity and biological activity on these. Environmental chemistry is an interdisciplinary science that includes atmospheric, aquatic and soil chemistry, as well as heavily relying onanalytical chemistry and being related to environmental and other areas of science.