Determining an Enthalapy Change of Reaction Purpose of Experiment The purpose of this experiment is to determine the enthalapy change for the displacement reaction: Zn(s) + CuSO4(aq) Cu(s) + ZnSO4(aq) Hypothesis With this experiment I can also not make a hypothesis‚ because we did actually not do the experiment‚ but we were told that the temperature would make a sudden drop ‚ but we can measure the ΔT of the surrounding. The reaction is endothermic because the system will take in energy
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Coal 24% Total 402 EJ Oil 36% 1 EJ = 1018 J Natural Gas 21% 434 EJ (www.eia. doe.gov) Source : World Energy Assessment‚ UNDP 5 World 4Primary Energy Production Trend 20 World Energy Production (EJ) 400 380 360 340 320 300 280 1980 1985 1990 1995 2000 Year Source:US DOE Energy Information Data 6 World Energy Consumption Fossil Fuels 320 EJ -79.6% of World Primary Energy Consumption (2002 EIA 372 EJ 85.7%) Fossil fuels depletion
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Mcphee Jacob Book Report # 1 Title: Crossties Over Saluda Author: John F. Gilbert‚ Text by Grady Jefferys Publisher: John F. Gilbert‚ Gilbert Design‚ Inc. /Crossties Press Books‚ 340 Transylvania Avenue‚ Raleigh‚ North Carolina 27609 Date: Copyright 1971 & 1982 Revised Edition 2001 The Crossties Over Saluda is a factual‚ yet very interesting book on the southern railway system starting throughout the 1800’s and onto the 1900’s. Around 1832‚ developing a rail line from Spartanburg
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About: Conqueror and king of Macedonia‚ Alexander the Great was born on July 20th‚ 356B.C. ‚ (the sixth day of the Macedonian month Loïos) in Pella‚ Macedonia to King Philip II and Queen Olympia‚ daughter of King Neoptolemus. He became the king of Persia‚ Babylon and Asia‚ and created Macedonian colonies in the same area. Alexander and his sister were raised in Pella’s Royal Court. Young Alexander never saw much of his father since King Philip II was off doing military campaigns. Olympia was a powerful
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good resistance to fatigue. The melting point of polypropylene occurs at a range‚ so a melting point is determined by finding the highest temperature of a differential scanning calorimetry chart. Perfectly isotactic PP has a melting point of 171 °C (340 °F). Commercial isotactic PP has a melting point that ranges from 160 to 166 °C (320 to 331 °F)‚ depending on atactic material and crystallinity. Syndiotactic PP with a crystallinity of 30% has a melting point of 130 °C (266 °F).[2] The melt flow rate
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Network Management Bret Chamness ITM 340 1 Introduction to Network Management and the Challenges • • Network Management is providing a dependable and efficient network with analysis‚ monitoring‚ and performance measurement. Network Management Systems are used by Network Engineers‚ and Managers for the day-to-day operation‚ monitoring‚ troubleshooting‚ and even executive reporting. Challenges are similar to those faced with all facets of IT Management: – – – – – – – Short of resources both
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STUDY GUIDE NR 340 EXAM TWO *Remember: The exam questions will test more of the higher level thinking skills (analyzing‚ application‚ and evaluating) and fewer lower level (remembering‚ understanding)‚ with the nursing process and QSEN application. There may be medication calculation and multiple answers. Pharmacodynamics of medications - i.e. action/therapeutic effects‚ uses‚ and nursing implications for the following: crystalloid solutions colloid solutions hypotonic/hypertonic solutions
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Case Analysis: Virgin Mobile USA What we are analyzing here is pricing of a service in a market which is saturated‚ as it has reached maturity‚ is highly capital intensive and in which a large amount of competition prevails. Virgin however is a known brand name with an extremely diversified portfolio. It has experimented successfully with the telecom business in the UK but failed in Singapore. It now targets the USA market; the problems before it are to: come up with an appealing offer and ensure
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Bus 675 Final Exam (individual work only and remember to always answer all parts of the question; in some cases you have up to 3 parts in 1 questions). Keep your answers short‚ max one paragraph per question. 1. What is Operation‚ what is Supply Chain; relate this to a product or service and provide some examples? Operations is the manufacturing and service processes that are used to transform the resources employed by a firm into products/services desired by the customer. Manufacturing takes
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reinvested the IRR itself‚ and that assumption is often not valid. 3) Stern Associates is considering a project that has the following cash flows data. What’s the project’s payback? Year: from 0 to 5‚ cash flows: -1100$‚ 300$‚ 310$‚ 320$‚ 330$ and 340$. Answer: 3.52 years (3 years + 170 divided by 330) 4) If a firm’s marginal tax rate is increased‚ this would‚ lower the cost of debt used to calculate the WACC. TRUE 5) the regular payback method is deficient in that it does not take account of cash
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