Heat exchanger An interchangeable plate heat exchanger Tubular heat exchanger. A heat exchanger is a piece of equipment built for efficient heat transfer from one medium to another. The media may be separated by a solid wall‚ so that they never mix‚ or they may be in direct contact.[1] They are widely used in space heating‚ refrigeration‚ air conditioning‚ power plants‚ chemical plants‚ petrochemical plants‚ petroleum refineries‚ natural gas processing‚ and sewage treatment. The classic example
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Hannah Dee III-Wisdom CN 8 June 24‚ 2012 Title: The Feasibility of Lemongrass Essence as Air Freshener Background Information: Air fresheners are consumer products used in homes or commercial products used in restrooms that typically emit fragrance. Air fresheners introduce fragrance into the air of interior spaces either
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Amanda Jornd Experiment 7- Synthesis and Reactivity of tert-Butyl Chloride Via an SN1 Reaction Introduction/Background: Alkyl halides are compounds in which a halogen atom replaces a hydrogen atom of an alkane. Alkyl halides are classified as primary‚ secondary or tertiary depending on the number of alkyl substituents directly attached to the carbon attached to the halogen atom. The purpose of this lab was to properly prepare t-butyl chloride from t-butyl-alcohol in a concentrated hydrochloric
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B.Tech.-IV (CHEMICAL) 7th SEMESTER SCHEME FOR TEACHING AND EXAMINATION CS: Core Subject Sr. No. ES: Elective Subject (from Department) Course Code Teaching Scheme Hours per Week Credits Examination Scheme Theory L 1 2 3 4 5 6 7 8 Chemical Reaction Engineering-II (CS-1) Instrumentation and Process Control (CS-2) Process Equipment Design and Drawing (CS-3) Transport Phenomena (CS-4) ES-1** Seminar Project Preliminaries Total Marks Practicals
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I. RESEARCH BACKGROUND Insect repellents help to prevent and control the outbreaks of insect-borne diseases such as malaria‚ Lyme disease‚ dengue fever‚ and bubonic plaque. Actions to reduce vector- borne diseases can result in major health gains and relieve an important constraint on development in poor regions. Insect repellents are important to the public health tools for the prevention of vector-borne infectious diseases. Technically‚ an insect repellent is any chemical or natural‚ that
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following process which consists of a pump‚ a reactor‚ an absorber‚ and a distillation column. The feed consists of 2 chemical components‚ A and B‚ which are fed into the reactor in which the following reactions take place: Reaction 1: Reaction 2: Reaction 3: A + B A 2C → C → D + 2E → D + F Pure F Pure E S4 Components A and B S1 S7 S5 S2 Reactor S6 Pump S3 S8 Absorber Distillation column Pure liquid component E is fed into the absorber‚ in which all
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AQA GCSE Chemistry Unit 1 C 1: Fundamental ideas: C 1.1. Atoms‚ elements and compounds: * All substances are made up of atoms. * Elements contain only one atom. * Compounds contain more than one atom. * An atom has a tiny nucleus in its centre‚ surrounded by electrons. C 1.2. Atomic structure: * Atoms are made up of protons‚ neutrons and electrons. * Protons and electrons have equal and opposite electrical charges. Protons are positively charged‚ and electrons are negatively
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Melting point 1. What two effects do impurities have on the melting point of an organic compound? Soluble impurities affect the melting point of a solid in the following manner. a. The presence of an impurity in the molten compound reduces its vapor pressure thus lowering the melting point of the compound. b. Broaden the melting point range. 2. For what tow purpose are melting points routinely used a. To determine the identity of an organic solid. b. To determine the purity of an organic solid
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theoretical yield: 2.206 g % actual yield: 3.6225 g � Weight after simple distillation Volume of product: 2.2 mL Mass of product: 1.771 g Percent yield of redistilled product Melting point of derivative: 230˚C -236˚C CONCLUSION In this experiment‚ 2-butanone was prepared from 2-butanol‚ oxidized by chromic acid. The percent yield of the product is 164.21 %‚ which is more than the theoretical yield. This happened because steam was distilled along with the 2-butanone at higher temperature. However
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of beta-carotene the powerful antioxidant that can help prevent cancer. In 2006‚ a research team from the Ben Gurion University in Israel found that citral‚ a key complex found in lemon grass‚ induced automatic cell death (apoptosis) in the cancerous cells while leaving the normal cells unharmed. As part of the research‚ the concentration of citral equivalent to the quantity in a cup of tea (one gram of lemon grass in hot water) was used. Effective Detoxifier: Lemongrass also has the property of
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