Χηεμιστρψ Ινϖεστιγατορψ Προϕεχτ To prepare of Rayon Thread from Filter Paper Name : MOHAMMAD ARSHAD SHEIKH Class : XII ‘B’ Roll No. : School Name: KENDRIYA VIDYALAYA‚ BIBROD‚ RATLAM (M.P.) Λαβορατορψ Χερτιφιχατε This is to certify that_____________________________ has satisfactorily completed the course of chemistry
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As technology continues to develop in sport‚ new composite materials are replacing the old traditional materials. Tennis rackets are no longer made of wood and sheep intestines but instead have been replaced with graphite and the strings are now made of nylon. This essay intends to discuss how old materials have been replaced by new composite materials‚ the manufacturing process and the benefits to the designer and consumer. Due to new technology‚ the tennis racket has changed materials. Throughout
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stalk of water hyacinth to be used in different aspects of our everyday lives. D. SIGNIFICANCE OF THE STUDY Rope is a flexible line made of fibers or wires twisted or braided together for tensile strength. Ropes may be made of natural fibers‚ such as cotton‚ hemp‚ jute‚ flax or sisal; of synthetic filaments‚ such as nylon‚ polyester or glass fibers; or of metallic wire. It is used for hauling heavy objects. Climbers also use ropes to belay or secure one another – one climbs while another holds
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1. An organic compound X with a molecular formula C2H6O undergoes oxidation with in presence of alkaline KMnO4 to form a compound Y. X on heating in presence of Conc. H2SO4 at 443K gives Z. Which on reaction with H2Oin presence of H2SO4 gives back `X` `Z` reacts with Br2 (aq) and decolorizes it. Identify X‚ Y‚ & Z and write the reactions involved. 2. An organic compound ‘A’ is widely used as a preservative in pickles and has a molecular formula C2H2O2. This compound reacts with ethanol to
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basic terms. It examines the benefits of ecological accounting‚ introduces some of the most important Footprint findings‚ and addresses provocative questions: Do we fit on the planet? How can the Footprint foster sustainable human development? How do carbon emissions contribute to humanity’s Ecological Footprint? Footprint Basics - Overview Humanity needs what nature provides‚ but how do we know how much we’re using and how much we have to use? The Ecological Footprint has emerged as the world’s
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These are considered better fats due to the fact that they help reduce the risk of heart disease. Monounsaturated fats are fats that have double bonded carbon in their molecules and are usually liquid at room temperatures and become more solid when cooled or chilled. Polyunsaturated fats are fats that typically have more than one double bonded carbon in the molecule‚ and they are also liquid at room temperature but tend to become solid when chilled or cooled. Saturated fats are defined as fats that
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Part 1: Man-made Fiber 1.Fiber Name: Rayon Spinning Method: Wet spun Trade Name(s): Viscose Rayon‚ Bemberg Rayon‚ Micromodal Rayon Major Advantages: Highly absorbable‚ easy to dye‚ cool hand‚ soft drape‚ can be made to resemble fibers Major Disadvantages: Much weaker when wet‚ poor resiliency‚ low appearance retention‚ very low elasticity Common End Use(s): Woven fabrics‚ apparel‚ draperies‚ upholstery‚ technical wipes‚ medical supplies Major Modifications and/or associated Trade name(s):
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Continuum Percolation study of carbon nano tube composites via Size distribution effects. A.Afaghi ;S.Asiaei ;M.Baniasadi Mechanical engineering department;University of Tehran. The three-dimensional continuum percolation problem of hard-core and soft-core (permeable) objects was an area of active research in the 1980s[1]. Among the considered geometrical objects a very important category is the case of permeable sticks with the form of capped cylinders [2]. Advancements in capabilities of
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Copper vs Fiber They are two major types of cables used in networking‚ copper and fiber. Each cable are used in different application regarding to its usage. They also have different strengths cause of the material they are made of. Copper is the most common out of the two cables. Not as powerful as Fiber‚ but are ideal for buildings up to 100m. Fiber is mostly used for longer distances that copper can’t reach. For example‚ Fiber is ideal for high-rise buildings. Both cables do have their weakness
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natural fibers? Natural fibers are any hair like raw material that can be directly accessible from an animal‚ vegetable‚ or mineral source (plants) and an be changed into non-woven fabrics such as felt or paper or‚a woven cloth when it has been span into yarns. When natural fibers can be discussed further and can be refereed to as agglomeration of cells in which the diameter is negligible in comparison with the length. The different types of Natural Fibers... Animal fibers are natural
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