responsibility in maintaining standards‚ said Roberts‚ the faculty co-chair for the Board of Judicial Affairs‚ in an interview after the panel.) Instead‚ panelists linked cheating to the social pressure put on students to prize high grades over education and other values‚ including creativity and imagination. Pressure by parents and schools to achieve top scores has created stress levels among students—beginning as early as elementary school—that are so high that some educators regard it as a health epidemic
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Introduction The primary objective of this lab is to be able to determine the specific heat of a reaction by using a calorimeter. A calorimeter is a device used to determine the specific heat of chemical reaction or a physical change. The specific heat a reactions is used to refer to the amount of heat that is lost or gained when one gram of a particular substance increases or decreases by one degree Celsius. When a chemical reaction occurs in an open container most of the energy gained or lost
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Enthalpy of Displacement IB Topic: Energetics Assessment Criteria: DCP‚ CE DATA COLLECTION AND PROCESSING ASPECT MARKS AWARDED Recording raw data: Processing raw data: Presenting Proceeded data: TOTAL: CONCLUSION AND EVALUATION Conclusion Evaluation Improving the procedure TOTAL AIM: Experimentally determine the enthalpy change of the displacement reaction between zinc and copper sulphate. Zn (s) + CuSO4 (aq) Cu (s) + ZnSO4
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Module EG1083 Fluid Mechanics PRESSURE ‚ FLUID SYSTEMS and FLUID PRESSURES SM(1) Pressure Definition of Pressure Fluid pressure: Force per unit area exerted by a fluid in a solid wall. Force acts perpendicularly to the surface in contacts. Fluid is a co u d s common word for gas a d/o liquid. o od o and/or qu d Pressure is a scalar quantity. It has the units of: N/m2 or Pa (or kPa) in SI system of units psi in Imperial system of units Pressure can also be expressed in terms of height
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Pressure Today in our modern society cheating in school is growing at a rapid rate‚ but who is to blame‚ is it the school system is it students or is it the teachers. I strongly believe that it is not only the student’s fault but the school systems as well. To begin‚ cheating among students has rapidly increased. The numbers are crazy; statically 2 out of every 3 kids have cheated on a test‚ homework‚ ect. “Cheating in school is rampant and getting worse 64% of students cheated on a test in the
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DETERMINATION OF ENTHALPY CHANGE OF NEUTRALIZATION IA Criteria Assessed: DCP CE MS Introduction When an alkali neutralizes an acid‚ a salt and water are formed. Aqueous hydrogen ions (H+(aq)) from the acid react with the hydroxide ions (OH- (aq)) from alkali‚ forming water. The identity of salt will depend on the nature of the acid and alkali used. H+(aq) + OH- (aq) → H2O(L) The combination of H+ and OH- ions in this way releases energy. In this practical‚ the enthalpy changes accompanying
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Thermochemistry: An Ice Calorimeter Determination of Reaction Enthalpy D. F. Nachman 6/23/2010 Abstract: An ice calorimeter was used to study the reaction of magnesium metal and 1.00M sulfuric acid solution: Mg(s) + H2SO4(aq) →MgSO4(aq) + H2(g). We found the experimental molar enthalpy of reaction to be ΔH = –355 ± 17 kJ/mol at 0°C‚ 24% lower than the textbook value of ΔH° = –466.9 kJ/mol‚ reported at 25°C. Introduction Whether a chemical reaction occurs spontaneously or is driven by an outside
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Calculation on the molar enthalpy change of a neutralization reaction Principle H2SO4(aq)+2NaOH(aq)=Na2SO4(aq)+2H2O(l) The reaction is a exothermic reaction‚ when the heat released by it is absorbed by water‚ the temperature of the water increases. The heat produced by the reaction can be calculated if it is assumed that all the heat is absorbed by the water. Heat change of reaction=-heat change of water =-mH2O×cH2O×△TH2O As the water has gained the heat produced by the reaction‚ the heat change
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Physical Sciences PROCESS ENGINEERING A LAB REPORT 1 Name: Salimli Samir Experiment Title: Calibration of Bourdon Tube Pressure Gauge Date of Experiment: 12.09.2015; Supervisor: Azizaga Azizov Contents Objective 3 Introduction 3 Apparatus 4 Theory 4 Procedure 6 Results 6 Discussion of Results 9 Conclusion 10 References 10 Objective The main purpose for doing this experiment is to fulfill pressure calibration on a Bourdon tube pressure gauge using a dead weight tester. Introduction
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According to the essay “Too Much Pressure” by Colleen Wenke‚ the reason that students cheat on their tests is because they are under too much pressure to get good grades‚ which is accurately portrayed since cheating is usually seen as one of the only ways to pass tests and that’s what students are being stressed to do. Based on her essay‚ teachers should be teaching students right from wrong as opposed to pressuring to the extent of making them cheat. This is important to see because it is a way
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