...increases in solvent, container and other immediate surroundings. The expression of heat released from the reaction is: qreaction = qsolution + qcalorimeter ……..(1) The qcalorimeter is nearly zero because the calorimeter in this experiment is assumed to absorb little heat. So, the equation is simplified to qreaction = qsolution ……...(2) The change in temperature that caused by the addition of a given amount of heat will depend on specific heat, Csp of substance. Therefore, the heat involved is calculated by the equation Q = (Csp)(m)(T) ………(3) Mass of substance is m, change is temperature is T (final temperature – initial temperature). The heat changes observed is equal to enthalpies of reaction, H for the reactions considered because this experiment was run at constant pressure. The enthalpy of these directly observed reactions and Hess’s law was used to calculate the enthalpy change for an additional reaction which is not directly observed. Hess’s law stated that the overall enthalpy change of a chemical reaction is independent of its pathway. The magnitude of enthalpy change of a chemical reaction depends only on the difference in the enthalpy content of the products and the reactants, and does not depend on how the reaction is completed. Consider the below thermochemical cycle: By Hess’s law, ΔH1 + ΔH2 = ΔH3 + ΔH4 In this experiment, the enthalpy for the...
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...CHAPTER 1 INTRODUCTION Definition Obesity is a medical condition in which excess body fat has accumulated to the extent that it may have an adverse effect on health, leading to reduced life expectancy and/or increased health problems. People are considered obese when their body mass index (BMI), a measurement obtained by dividing a person's weight in kilograms by the square of the person's height in metres, exceeds 30 kg/m2. Obesity increases the likelihood of various diseases, particularly heart disease, type 2 diabetes, obstructive sleep apnea, certain types of cancer, and osteoarthritis. Obesity is most commonly caused by a combination of excessive food energy intake, lack of physical activity, and genetic susceptibility, although a few cases are caused primarily by genes, endocrine disorders, medications or psychiatric illness. Evidence to support the view that some obese people eat little yet gain weight due to a slow metabolism is limited; on average obese people have a greater energy expenditure than their thin counterparts due to the energy required to maintain an increased body mass. Dieting and physical exercise are the mainstays of treatment for obesity. Diet quality can be improved by reducing the consumption of energy-dense foods such as those high in fat and sugars, and by increasing the intake of dietary fiber. Anti-obesity drugs may be taken to reduce appetite or inhibit fat absorption together with a suitable diet. If diet, exercise and medication are...
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...2. BASICS OF ENERGY AND ITS VARIOUS FORMS Syllabus Basics of Energy and its various forms: Electricity basics - DC & AC currents, Electricity tariff, Load management and Maximum demand control, Power factor. Thermal basics -Fuels, Thermal energy contents of fuel, Temperature & Pressure, Heat capacity, Sensible and Latent heat, Evaporation, Condensation, Steam, Moist air and Humidity & Heat transfer, Units and conversion. 2.1 Definition Energy is the ability to do work and work is the transfer of energy from one form to another. In practical terms, energy is what we use to manipulate the world around us, whether by exciting our muscles, by using electricity, or by using mechanical devices such as automobiles. Energy comes in different forms - heat (thermal), light (radiant), mechanical, electrical, chemical, and nuclear energy. 2.2 Various Forms of Energy There are two types of energy - stored (potential) energy and working (kinetic) energy. For example, the food we eat contains chemical energy, and our body stores this energy until we release it when we work or play. 2.2.1 Potential Energy Potential energy is stored energy and the energy of position (gravitational). It exists in various forms. Chemical Energy Chemical energy is the energy stored in the bonds of atoms and molecules. Biomass, petroleum, natural gas, propane and coal are examples of stored chemical energy. Nuclear Energy Nuclear energy is the energy stored in the nucleus of an atom - the energy that holds...
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...Molecules, Biodiversity, Food and Health Biological Molecules Biological Molecules (a) describe how hydrogen bonding occurs between water molecules, and relate this, and other properties of water, to the roles of water in living organisms; Water is a polar molecule. This is because the oxygen atom pulls the shared electrons towards it, meaning that water is slightly negatively charged at the oxygen and positively charged at the hydrogen ends, so they can form hydrogen bonds with each other. This are continuing breaking and reforming, so the molecules can move around. Property of water Solvent Importance Metabolic processes in all organisms rely on chemicals being able to react together in solution Examples 70-95% of cytoplasm is water. Dissolved chemicals take part in processes such as respiration and photosynthesis in living organisms Liquid The movement of materials around organisms, both in cells and on a large scale in multicellular organisms requires a liquid transport medium Water molecules stick to each other creating surface tension at the water surface. Cohesion also makes long, thin water columns very strong and difficult to break Blood in animals and the vascular tissue in plants use water as a liquid transport medium Cohesion Freezing Water freezes, forming ice on the surface. Water beneath the surface becomes insulated and less likely to freeze Thermal stability Large bodies of water have fairly...
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...Thermodynamics is a branch of physics concerned with heat and temperature and their relation to energy and work. It defines macroscopic variables, such as internal energy, entropy, and pressure, that partly describe a body of matter or radiation. It states that the behavior of those variables is subject to general constraints, that are common to all materials, not the peculiar properties of particular materials. These general constraints are expressed in the four laws of thermodynamics. Thermodynamics describes the bulk behavior of the body, not the microscopic behaviors of the very large numbers of its microscopic constituents, such as molecules. Its laws are explained by statistical mechanics, in terms of the microscopic constituents. Thermodynamics applies to a wide variety of topics in science and engineering, especially Physical chemistry, Chemical engineering, thermal power generation and steam and combustion turbines. Historically, thermodynamics developed out of a desire to increase the efficiency and power output of early steam engines, particularly through the work of the French physicist Nicolas Léonard Sadi Carnot who believed that the efficiency of heat engines was the key that could help France win the Napoleonic Wars. The Irish-born British physicist Lord Kelvin was the first to formulate a concise definition of thermodynamics in 1854: Initially, thermodynamics, as applied to heat engines, was concerned with the thermal properties of their 'working materials'...
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...Physical Chemistry Understanding our Chemical World Physical Chemistry Understanding our Chemical World Paul Monk Manchester Metropolitan University, UK Copyright 2004 John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex PO19 8SQ, England Telephone (+44) 1243 779777 Email (for orders and customer service enquiries): cs-books@wiley.co.uk Visit our Home Page on www.wileyeurope.com or www.wiley.com All Rights Reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except under the terms of the Copyright, Designs and Patents Act 1988 or under the terms of a licence issued by the Copyright Licensing Agency Ltd, 90 Tottenham Court Road, London W1T 4LP, UK, without the permission in writing of the Publisher. Requests to the Publisher should be addressed to the Permissions Department, John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex PO19 8SQ, England, or emailed to permreq@wiley.co.uk, or faxed to (+44) 1243 770620. This publication is designed to provide accurate and authoritative information in regard to the subject matter covered. It is sold on the understanding that the Publisher is not engaged in rendering professional services. If professional advice or other expert assistance is required, the services of a competent professional should be sought. Other Wiley...
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...SCHAUM'S OUTLINE OF THEORY AND PROBLEMS OF COLLEGE PHYSICS Ninth Edition . FREDERICK J. BUECHE, Ph.D. Distinguished Professor at Large University of Dayton EUGENE HECHT, Ph.D. Professor of Physics Adelphi University . SCHAUM'S OUTLINE SERIES McGRAW-HILL New York St. Louis San Francisco Auckland Bogota Caracas Lisbon London Madrid Mexico City Milan Montreal New Delhi San Juan Singapore Sydney Tokyo Toronto McGraw-Hill abc Copyright © 1997, 1989, 1979, 1961, 1942, 1940, 1939, 1936 by The McGraw-Hill Companies, Inc All rights reserved. Manufactured in the United States of America. Except as permitted under the United States Copyright Act of 1976, no part of this publication may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written permission of the publisher. 0-07-1367497 The material in this eBook also appears in the print version of this title: 0-07-008941-8. All trademarks are trademarks of their respective owners. Rather than put a trademark symbol after every occurrence of a trademarked name, we use names in an editorial fashion only, and to the benefit of the trademark owner, with no intention of infringement of the trademark. Where such designations appear in this book, they have been printed with initial caps. McGraw-Hill eBooks are available at special quantity discounts to use as premiums and sales promotions, or for use in corporate training programs. For more...
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...calculators. 3. THE COMPETITION: Students should know the basic anatomy and physiology of the nervous, excretory and digestive systems and how aging and specific diseases affect them. Process skills expected may include data collection, making observations, inferences, predictions, calculations, analyses and conclusions. The test may include various formats (e. g., timed stations, written test, PowerPoint slides, anatomical specimens, etc.) for the following topics: a. DIGESTIVE SYSTEM - All levels should know: 1. Functions ofthe digestive system 11. Basic anatomy of the component parts of the alimentary canal and accessory organs of digestion iii. Anatomy of the four layers ofthe wall of the alimentary canal IV. Comparison of the lining of the esophagus, stomach, small intestine and large intestine v. Compare and contrast mechanical and chemical digestion vi. Physiology of chemical digestion of proteins, fats and carbohydrates vii. The effects of exercise on the digestive system viii. The diseases on each level from the cell to the whole person as listed: stomach & duodenal ulcers, cancers of the digestive system, diaiThea, lactose intolerance, hepatitis, appendicitis National Level Only: ix. Additional diseases: diverticular disease, GERD, Crohn's Disease and celiac disease x. The function of the liver and pancreas in the digestive system. How Kupffer cells work xi. Treatments and/or prevention for all conditions listed above (drugs, surgery, etc.) b. EXCRETORY SYSTEM - All levels...
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...CALCULATION EXERCICES To the LABORATORY EXPERIMENTS IN MEDICAL CHEMISTRY Edited by: Zoltán Matus Compiled by: Péter Jakus László Márk Anikó Takátsy Pécs, 2007 Table of content: Introduction 3 1. Stoichiometry I. Balancing equations 4 2. Stoichiometry II. Calculation exercises 9 3. The gaseous state 13 4. Concentrations of solutions 17 5. Calculations connected to titrimetry 28 6. Electrolytic dissociation 33 7. Dilute solutions 38 8. Hydrogen ion concentration, pH, buffers 44 9. Heterogeneous equilibria. Crystallisation, solubility product, partition coefficient 55 10. Thermochemistry 64 11. Electrochemistry 67 2 INTRODUCTION The chapter is devoted to helping the students practice the most important topics of General Chemistry. The order of the sections follows the schedule of the lectures and seminars, and their volume indicates the importance of the topic. Each section begins with a few solved problems. They represent the minimum requirement at the exam. The worked-out solutions are not the only ones. For an easier self-checking, the numerical results of the unsolved calculation exercises are given in parentheses after each question. Sources: 1.) Laboratory experiments in medical chemistry, ed. György Oszbach, Pécs, 1998. 2.) Villányi Attila: Ötösöm lesz kémiából, (6. ed.) Mőszaki Könyvkiadó, Budapest., 1999 3.) Charles E. Mortimer...
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...Chapter 1 Nursing Images throughout History 1) The angle of mercy 2) The handmaiden 3) The battle-ax 4) The naughty nurse 5) The military image A. Nurses on the battlefield * Hospitalers – specialized soldiers who at the end of battle returned to the outposts to care for the sick and injured * Army nursing service – organize nurses and hospitals and coordinate supplies for the soldiers during the Civil War * Clara Barton a. Provided care in tents set up close to the fighting b. Did not discriminate c. Establishment of the American Red Cross * Harriet Tubman – helped slaves escape to freedom on the underground railroad * Walt Whitman – a poet * Louisa May Alcott – an author * Dorothea Dix – union’s superintendent of female nurses during the Civil War B. Nurses fighting diseases * Florence Nightingale d. Epidemiology – the study of the distribution and origins of disease e. Air, light, nutrition, and adequate ventilation and space assist the patient to recuperate * Lillian Wald & Mary Brewster f. Founded the Henry Street Settlement in NY to improve the health and social conditions of poor immigrants g. Improve health and prevent illness by promoting safe drinking water, adequate sewage facilities, and proper sanitation Florence Nightingale (1820-1910) ...
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...1 General Science General Science CHAPTER I. CHAPTER CHAPTER CHAPTER I CHAPTER I CHAPTER I CHAPTER II CHAPTER II CHAPTER II CHAPTER III CHAPTER III CHAPTER III CHAPTER IV CHAPTER IV CHAPTER IV CHAPTER V CHAPTER V CHAPTER V CHAPTER VI CHAPTER VI CHAPTER VI CHAPTER VII CHAPTER VII CHAPTER VII CHAPTER VIII CHAPTER VIII CHAPTER VIII CHAPTER IX CHAPTER IX 2 CHAPTER IX CHAPTER X CHAPTER X CHAPTER X CHAPTER XI CHAPTER XI CHAPTER XI CHAPTER XII CHAPTER XII CHAPTER XII CHAPTER XIII CHAPTER XIII CHAPTER XIII CHAPTER XIV CHAPTER XIV CHAPTER XIV CHAPTER XV CHAPTER XV CHAPTER XV CHAPTER XVI CHAPTER XVI CHAPTER XVI CHAPTER XVII CHAPTER XVII CHAPTER XVII CHAPTER XVIII CHAPTER XVIII CHAPTER XVIII CHAPTER XIX CHAPTER XIX CHAPTER XIX CHAPTER XX CHAPTER XX CHAPTER XX CHAPTER XXI CHAPTER XXI CHAPTER XXI CHAPTER XXII CHAPTER XXII CHAPTER XXII CHAPTER XXIII CHAPTER XXIII CHAPTER XXIII CHAPTER XXIV CHAPTER XXIV CHAPTER XXIV CHAPTER XXV CHAPTER XXV CHAPTER XXV CHAPTER XXVI CHAPTER XXVI CHAPTER XXVI General Science CHAPTER XXVII CHAPTER XXVII CHAPTER XXVII CHAPTER XXVIII CHAPTER XXVIII CHAPTER XXVIII CHAPTER XXIX CHAPTER XXIX CHAPTER XXIX CHAPTER XXX CHAPTER XXX CHAPTER XXX CHAPTER XXXI CHAPTER XXXI CHAPTER XXXI CHAPTER XXXII CHAPTER XXXII CHAPTER XXXII CHAPTER XXXIII CHAPTER XXXIII CHAPTER XXXIII CHAPTER XXXIV CHAPTER XXXIV CHAPTER XXXIV CHAPTER XXXV CHAPTER XXXV CHAPTER XXXV General...
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...FRONTLINE JANUA RY 1 3, 2 012 WWW.FRONTLINE.IN INDIA’S NATIONAL MAGAZINE RS.25 WORLD AFFAIRS IRAQ FOOD SECURITY PDS CLIMATE CHANGE DURBAN Exit America 49 What people say 96 Uncertain stand 114 Remembering TAGORE On his 150th birth anniversary VOLUME 28 NUMBER 27 TH E STAT E S Fiery trap in Kolkata 41 SC IE NCE Higgs signal? 44 WOR L D A F F A I R S Iraq: Exit America War crimes in the trash Russia: December Revolution Pakistan: Volatile state India & China: Troubled equations DECEMBER 31, 2011 - JANUARY 13, 2012 C O V ER S T O RY 49 52 ISSN 0970-1710 Timeless Tagore As an activist, thinker, poet and rural reconstructionist, Rabindranath Tagore continues to be relevant. A tribute on the 150th anniversary of his birth. 4 WWW.FRONTLINE.IN Jayati Ghosh: Mess in eurozone R.K. Raghavan: A lost battle? 108 118 BOOKS LE TTE R S 73 127 54 57 61 TR AVE L Jungles of Borneo 64 AR T Achuthan Kudallur’s journey 85 H ISTOR Y Of Quit India, Nehru & Communist split 89 FOOD SEC UR I T Y Understanding the PDS Kerala: Power of literacy Bihar: Coupon fiasco Jharkhand: Strong revival Chhattisgarh: Loud no to cash E CONOM Y Losing momentum Interview: C. Rangarajan, Chairman, PMEAC CL IM A TE C H A N G E Uncertain stand in Durban CONTR OV E R S Y Mullaperiyar dispute: Deep distrust Fallout of fear OBITU A R Y Humble genius: Mario Miranda Korea’s...
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...IET ELECTRICAL MEASUREMENT SERIES 12 Microwave Measurements 3rd Edition Other volumes in this series: Volume 4 Volume 5 Volume 7 Volume 8 Volume 9 Volume 11 The current comparator W.J.M. Moore and P.N. Miljanic Principles of microwave measurements G.H. Bryant Radio frequency and microwave power measurement A.E. Fantom A handbook for EMC testing and measurement D. Morgan Microwave circuit theory and foundations of microwave metrology G. Engen Digital and analogue instrumentation: testing and measurement N. Kularatna Microwave Measurements 3rd Edition Edited by R.J. Collier and A.D. Skinner The Institution of Engineering and Technology Published by The Institution of Engineering and Technology, London, United Kingdom © 1985, 1989 Peter Peregrinus Ltd © 2007 The Institution of Engineering and Technology First published 1985 (0 86341 048 0) Second edition 1989 (0 86341 184 3) Third edition 2007 (978 0 86341 735 1) This publication is copyright under the Berne Convention and the Universal Copyright Convention. All rights reserved. Apart from any fair dealing for the purposes of research or private study, or criticism or review, as permitted under the Copyright, Designs and Patents Act, 1988, this publication may be reproduced, stored or transmitted, in any form or by any means, only with the prior permission in writing of the publishers, or in the case of reprographic reproduction in accordance with the terms of licences issued by the Copyright Licensing Agency...
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...Contents Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11 Chapter 12 Chapter 13 Chapter 14 Chapter 15 Chapter 16 Chapter 17 Chapter 18 Chapter 19 Chapter 20 Chapter 21 Chapter 22 Chapter 23 Introduction to Biochemistry Water Amino Acids and the Primary Structures of Proteins Proteins: Three-Dimensional Structure and Function Properties of Enzymes Mechanisms of Enzymes Coenzymes and Vitamins Carbohydrates Lipids and Membranes Introduction to Metabolism Glycolysis Gluconeogenesis, The Pentose Phosphate Pathway, and Glycogen Metabolism The Citric Acid Cycle Electron Transport and Oxidative Phosphorylation Photosynthesis Lipid Metabolism Amino Acid Metabolism Nucleotide Metabolism Nucleic Acids DNA Replication, Repair, and Recombination Transcription and RNA Processing Protein Synthesis Recombinant DNA Technology 1 10 27 46 65 85 104 119 137 153 169 185 199 213 227 241 256 269 284 300 315 330 348 Chapter 1 Introduction to Biochemistry 1) Which elements account for more than 97% of the weight of most organisms? A) C, H, N, Mg, O, S B) C, H, N, O, P, S C) C, H, N D) Fe, C, H, O, P E) Ca2+ , K+ , Na+ , Mg 2+ , ClAnswer: B Page Ref: Section 2 2) Proteins in biological membranes may be A) porous. B) attached to the membrane surface. C) span the membrane. D) All of the above E) B and C only Answer: D Page Ref: Section 3 3) Which statement...
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...62118 0/nm 1/n1 2/nm 3/nm 4/nm 5/nm 6/nm 7/nm 8/nm 9/nm 1990s 0th/pt 1st/p 1th/tc 2nd/p 2th/tc 3rd/p 3th/tc 4th/pt 5th/pt 6th/pt 7th/pt 8th/pt 9th/pt 0s/pt a A AA AAA Aachen/M aardvark/SM Aaren/M Aarhus/M Aarika/M Aaron/M AB aback abacus/SM abaft Abagael/M Abagail/M abalone/SM abandoner/M abandon/LGDRS abandonment/SM abase/LGDSR abasement/S abaser/M abashed/UY abashment/MS abash/SDLG abate/DSRLG abated/U abatement/MS abater/M abattoir/SM Abba/M Abbe/M abbé/S abbess/SM Abbey/M abbey/MS Abbie/M Abbi/M Abbot/M abbot/MS Abbott/M abbr abbrev abbreviated/UA abbreviates/A abbreviate/XDSNG abbreviating/A abbreviation/M Abbye/M Abby/M ABC/M Abdel/M abdicate/NGDSX abdication/M abdomen/SM abdominal/YS abduct/DGS abduction/SM abductor/SM Abdul/M ab/DY abeam Abelard/M Abel/M Abelson/M Abe/M Aberdeen/M Abernathy/M aberrant/YS aberrational aberration/SM abet/S abetted abetting abettor/SM Abeu/M abeyance/MS abeyant Abey/M abhorred abhorrence/MS abhorrent/Y abhorrer/M abhorring abhor/S abidance/MS abide/JGSR abider/M abiding/Y Abidjan/M Abie/M Abigael/M Abigail/M Abigale/M Abilene/M ability/IMES abjection/MS abjectness/SM abject/SGPDY abjuration/SM abjuratory abjurer/M abjure/ZGSRD ablate/VGNSDX ablation/M ablative/SY ablaze abler/E ables/E ablest able/U abloom ablution/MS Ab/M ABM/S abnegate/NGSDX abnegation/M Abner/M abnormality/SM abnormal/SY aboard ...
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