experiment is to determine the rate law and the activation energy for the reaction between persulfate ion‚ S2O82-‚ and iodide ion‚ I-: S2O82-(aq) + 2 I-(aq) 2 SO42-(aq) + I2(aq) The rate law can be written as Reaction rate = (1) Where m and n are the orders with respect to S2O82- and I-‚ respectively‚ and k is the rate constant. Determining the rate law involves determining the values of m and n. The temperature dependence of the rate constant is given by (2)
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The purpose of this practical is to investigate how the pulse rate of humans changes when they exercise. Someone who is physically fit can supply their muscles with enough blood‚ carrying glucose and oxygen‚ for an activity at a lower heart and breathing rate. The fitter you are the lower your resting heart rate. You and your classmates will be the humans investigated. SAFETY: If you know you have any condition that affects you doing exercise‚ please make sure your teacher knows before you start
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Rates of Reaction Coursework Aim: To find out how different concentrations of sodium thiosulphate (Na S2 O3) affects the speed of its reaction with Hydrochloric acid (HCL). Introduction When Sodium Thiosulphate and Hydrochloric acid react they produce a cloudy precipitate. Both of the chemicals are clear solutions and they react together to form a yellow precipitate of sulphur‚ the equation for this reaction is: Na2 S2 O3 + HCL‚ H2 O + NaCL + SO2 + S Sodium Thiosulphate + Hydrochloric
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recognized is foreign exchange exposure which is directly related to foreign exchange rate. 1.1. Possible foreign exchange risk In order to have a comprehensive view regarding foreign exchange risk‚ this part will define as well as separate this exposure into clearer and smaller concepts. Firstly‚ it is highlighted to indicate that foreign exchange exposure possibly occurs as a result of the fluctuation of exchange rates‚ leading to negative effects on profitability‚ cash flows and other financial indicators
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Exchange Rate December 2014 THE EXCHANGE RATE KEY DEFINITIONS AND CONCEPTS 1. How is the exchange rate defined? The exchange rate is the price of a unit of foreign currency in terms of the domestic currency. In the Philippines‚ for instance‚ the exchange rate is conventionally expressed as the value of one US dollar in peso equivalent. For example‚ US$1 = P44.00. In every exchange rate quotation‚ therefore‚ there are always two currencies involved. 2. Why is the exchange rate important? The exchange
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Heart Rate Research Question: Do different exercises have different effect on heart rate? Method: 1. Find test subject 2. Prepare for activity (stretching) 3. Take heart rate of subject before exercise 4. Record heart rate 5. Do sit ups for 2 mins 6. Time using stop watch 7. Record heart rate 8. Allow subject to rest (lower heart rate) 9. Begin next exercise 10. Jumping jacks for 2 mins 11. Time using stopwatch 12. Record heart rate 13. Allow subject to rest (lower heart rate) 14. Squats for
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EFFECT OF INTEREST RATE ON FOREIGHN EXCHANGE RATE (EVIDENCE FROM ASIAN REGION) ABSTRACT: In this article we investigate the impact of a change in U.S. short term interest rates relative to those in some Asian countries like Bangladesh‚ Thailand‚ Japan‚ Pakistan‚ and China on the bilateral foreign exchange rates between the U.S dollar and each country’s currency. Several factors determine the exchange rate of a country. A higher currency makes a country’s exports more expensive and imports cheaper
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Growth rates and how to calculate them. Growth rates can be tricky to calculate and interpret and many people get confused. So here’s how to get ahead of everyone. Let’s start with a time series where we know the answer. In the example below‚ X starts at 100‚ grows 3%‚ then falls back again‚ then grows 3% again. So over the three years‚ it has grown from 100 to 103. 1 Year 2000 2001 2002 2003 Average CAGR 2 3 4 X Growth X DlnX 100 103 0.03 0.0295588 100 -0.0291262 -0.0295588 103 0.03 0.0295588
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Energy Conversion Systems: Archimedes Wave Swing and Power Buoy Jawad Faiz1* and M. Ebrahimi-Salari2 1. School of Electrical and Computer Engineering‚ University of Tehran‚ Tehran‚ Iran 2. Department of Electrical Engineering‚ Islamic Azad University‚ Najafabad Branch‚ Najafabad‚ Isfahan‚ Iran Abstract: Many wave energy conversion devices have not been well received. The main reasons are that they are too complicated and not economical. However‚ in the last two decades direct conversion systems
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between exchange rates‚ interest rates • In this lecture we will learn how exchange rates accommodate equilibrium in financial markets. For this purpose we examine the relationship between interest rates and exchange rates. Interest rates are the return to holding interest-bearing financial assets. In the previous lecture we have pointed out that as being a financial asset exchange rates tend to adjust more quickly to new information that goods prices. Like exchange rates‚ interest rates are also the prices
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