A phase transfer catalyst or PTC in chemistry is a catalyst which facilitates the migration of a reactant in a heterogeneous system from one phase into another phase where reaction can take place. Ionic reactants are often soluble in an aqueous phase but insoluble in an organic phase unless the phase transfer catalyst is present. Phase transfer catalysis (also PTC) refers to the acceleration of the reaction by the phase transfer catalyst. Phase transfer catalysts for anion reactants are often
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thick layer of insulation (ki = 0.085 W/m.K) and carrying a superheated steam at atmospheric pressure is suspended from the ceiling of a large room. The steam temperature entering the pipe is 120 oC‚ and the air temperature is 20 oC. The overall heat transfer coefficient on the outer surface of the covered pipe is 10 W/m2.K. if the velocity of the steam is 10 m/s‚ at what point along the pipe will the steam begin condensing and what distance will be required for the steam to reach a mean temperature
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Urban Politics Is Socioeconomic Urban Division a Factor in Public Service Delivery? Thursday‚ July 26‚ 2012 I. INTRODUCTION Since the creation of this county‚ there have always been various differences between the rich and poor. In terms of social-economic status/class‚ the rich and wealthy elites have always dominated every aspect of society. However‚ the low socio-economic class has always endured the worst conditions in
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younger sister‚ who in the movie battles with her parents for medical emancipation. In the movie‚ it touches on all her family members personal struggles with Kate’s illness‚ and the effects it has on their family. This movie shows some medical aspects for Kate as she battles her cancer‚ and Anna who is Kate’s donor. The title of the movie of the movie has a duel meaning for me‚ because the sisters look after each other thru out the movie‚ so one may never know which sister is her sisters keeper.
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rendering the same level of utility (satisfaction) for the consumer. A budget constraint represents all the combinations of goods and services that a consumer may purchase given current prices within his or her given income. For an individual‚ indifference curves and an assumption of constant prices and a fixed income in a two-good world will give the following diagram. The consumer can choose any point on or below the budget constraint line BC. This line is diagonal since it comes from the equation
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The Fabulous Button Sisters In this short story we hear about Karen. She is a teenage girl going to school. She had a best friend in her class‚ Connie‚ but when Connie turned sick with fever‚ at the same time as a new girl‚ Michelle‚ started in the class. Karen realized at the moment Michelle walked into the class‚ that she was going to be her best friend. And so it all happened. Michelle was a type a girl who would like to control and wanted to be heard. Michelle was living with her aunt‚ because
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ICICI BANK INTEREST RATES FOR FIXED DEPOSITS Maturity Period Rates of Interest (% p.a.) w.e.f January 26‚ 2013 For deposit less than Rs. 1 crore General Senior Citizen ** 7 days to 14 days 4.50 5.00 15 days to 29 days 4.75 5.25 30 days to 45 days 5.50 6.00 46 days to 60 days 6.25 6.75 61 days to 289 days 7.00 7.50 290 days to less than 1 year 7.25 7.75 1 year to 389 days 7.50 8.00 390 days to less than 2 years 9.00 9.50 2 years to less than 5 years 8.75 9.50 5
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My Sister’s Keeper Kate Fitzgerald was diagnosed suffering from leukemia when she was 2 years old. The doctors said to Sara and Brian‚ her parents‚ that there is maybe a solution to save Kate; have a genetic baby. Since Anna was born‚ she had a lot of operations to save her sister. Kate turns 15 and she has a renal failure and Anna knows that the only person who cans help Kate is she and she knows that their parents will force her to donate one of her kidneys. She realizes that if she does the
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resistance R0 = 100 Ω at 0o C. If the resistance RT = 197.7 Ω in an oil bath‚ what is the temperature of the oil in the bath‚ given that RT = R0(1+αT)? Take R0 = 100 Ω R0 = resistance at 0o C α = 3.9083 x 10-3 /o C (2 marks) NDE Thermodynamics and Heat Transfer Exam 2008 Name: _______________________________________ Read all the instructions before starting Do not open this paper until instructed Time allowed: 2 hours (plus 5 minutes reading time) Attempt ALL question in Section A (questions 1 – 12) Attempt
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Sister Callista Roy: Roy Adaptation Model Presented by: Sarah B. Elmer‚ RN‚ BSN Washburn University‚ Spring 2015 1 Sister Callista Roy Born in Los Angeles‚ California in 1939 Began work at the age of 14 in a large general hospital. She worked her way from maid to nurse’s aide. Joined a religious order of the Sister of Saint Joseph of Carondelet‚ where she has been a member for over 40 years. 2 Background Continued Education includes a B.A. from Mount Saint Mary’s college in Los Angeles
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