...Nemneet Dhather Chemistry 4th Period Additivity of Heats of Reaction: Hess’s Law Introduction In this experiment, we will learn how to use a Styrofoam-cup colorimeter to measure the heat released by three reactions. To do this experiment we need to know about heat which is energy that is being moved because of temperature change between two things. Enthalpy which is a special energy function to make the process of finding how much energy is released or absorbed by a given reaction. Enthalpy is presented by Δ H or Q. Δ represents “a change in” and H represents” heat”. Q represents energy required. To know the reactions presented we must know what the meanings of, exothermic which means releasing heat and endothermic which means to absorb heat. The equation to enthalpy is Q = S x M x Δ T. The Q represents energy required. S represents specific heat capacity. M represents mass of sample in grams and Δ T represents a change in temperature in Celsius degrees. To measure energy we have to know what to measure it by and that is by the joule (calorie). Joule (used to describe heat) is from an SI unit that represents calorie, the amount of energy necessary to increase the temperature of one gram of water by one Celsius degree, which is equal to 4.184 joules. One of the most important features of enthalpy is that it is a state function. This is where Hess’s law principle comes in to play which says, whether the reaction takes place in one step or series of steps the change...
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...Thelma & Louise Thelma & Louise er en Amerikansk film regiserert av Ridley Scott. Filmen handler om 2 unge damer på Road Trip, de er på vei bort fra sine begrensede og ufrie liv. Geena Davis og Susan Sarandon har de 2 kvinnelige hovedrollene. Thelma & Louise var også Brad Pitt sin første store rolle i en Hollywood film, han spiller en raner på prøveløslatelse fra fengselet. Da de 2 damene har kommet et stykke på vei, bestemmer de seg for å stoppe å ta en drink. Her møter Thelma en mann som heter Harlan. Han sjenker henne for så å ta henne med ut på en parkeringsplass å prøve å voldta henne. Louise kommer ut og ser hva Harlan prøver på, hun skyter han. Ikke bare må Thelma & Louise flykte fra sine vanlige liv, men også politiet. Dramaturgi: Filmen følger Hollywood modellen: Anslag, Konfliktopptrapping, Point of no return, klimaks, Konfliktløsning. Filmen begynner med at Thelma og Louise drar på road trip, Thelma vil ikke si fra til mannen sin, fordi hun vet hun ikke hadde fått lov uansett. Ganske tidlig i filmen opplever vi point of no return, da Louise skyter mannen som prøver å voldta Thelma. Point of no return inngår da i konfliktopptrappingen, noe som ikke er helt vanlig for alle Hollywood filmer. Klimakset i filmen er på slutten da Thelma og Louise har en hær av politibiler bak seg. Thelma og Louise løser konflikten ved å hoppe utfor Grand Canyon. Personkarakteristikk: Thelma: Hun er den dumme av de 2 jentene. Hun er ikke veldig selvsikker, og mentalt sterk er hun...
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...the essentials of Linda Null and Julia Lobur JONES AND BARTLETT COMPUTER SCIENCE the essentials of Linda Null Pennsylvania State University Julia Lobur Pennsylvania State University World Headquarters Jones and Bartlett Publishers 40 Tall Pine Drive Sudbury, MA 01776 978-443-5000 info@jbpub.com www.jbpub.com Jones and Bartlett Publishers Canada 2406 Nikanna Road Mississauga, ON L5C 2W6 CANADA Jones and Bartlett Publishers International Barb House, Barb Mews London W6 7PA UK Copyright © 2003 by Jones and Bartlett Publishers, Inc. Cover image © David Buffington / Getty Images Illustrations based upon and drawn from art provided by Julia Lobur Library of Congress Cataloging-in-Publication Data Null, Linda. The essentials of computer organization and architecture / Linda Null, Julia Lobur. p. cm. ISBN 0-7637-0444-X 1. Computer organization. 2. Computer architecture. I. Lobur, Julia. II. Title. QA76.9.C643 N85 2003 004.2’2—dc21 2002040576 All rights reserved. No part of the material protected by this copyright notice may be reproduced or utilized in any form, electronic or mechanical, including photocopying, recording, or any information storage or retrieval system, without written permission from the copyright owner. Chief Executive Officer: Clayton Jones Chief Operating Officer: Don W. Jones, Jr. Executive V.P. and Publisher: Robert W. Holland, Jr. V.P., Design and Production: Anne Spencer V.P., Manufacturing and...
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