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Dr. King s Letter From Birmingham Jail - 1342 Words

Dr. King Lays the Clergymen’s Anxiety to Rest Dr. Martin Luther King addressed many topics in, â€Å"Letter from Birmingham Jail†. He answered all the issues that were aimed towards him in a very skillful and well thought out manner. These issues came from, â€Å"A Call For Unity†, which was a letter that was published by eight local clergymen expressing their feelings about what Dr. King was doing. One concern in particular that King did an outstanding job of confronting was that of the clergymen’s anxiety about him breaking the law. King addresses the question of, â€Å"How can you advocate breaking some laws and obeying others?† by clarifying that there are just and unjust laws. He also goes on to explain the difference between the two, the effect of unjust laws on the people that they are aimed towards, as well as examples of such laws. Furthermore, he explains why they should be broken and gives examples of when they’ve been broken in the past with the usage of civil disobedience. First, Dr. King clears up any idea that he’s just someone who has broken the law for no reason. He does this by saying; â€Å"I would be the first to advocate obeying just laws. One has not only a legal but a moral responsibility to obey just laws. Conversely, one has a moral responsibility to disobey unjust laws.† (Para 15) This statement tells us that Dr. King is simply adhering to his moral responsibility by doing as he’s supposed to. He knows that following a law that is not fair makes no sense, and itShow MoreRelatedDr. King s Letter From Birmingham Jail1667 Words   |  7 Pagesyear of 1963, when racial discrimination was evident in the community, Dr. King delivered two of his most noted works called the â€Å"I have a Dream† speech and â€Å"Letter from Birmingham Jail† to the public. These two pieces, quickly following each other in succession, were literary works of Dr. King devoted to the cause of racial equality and used eclectic devices and a ppeals to achieve that goal. King’s purpose bolstered in his â€Å"Letter† and â€Å"Dream† speech by key rhetorical devices are supported by audienceRead MoreDr. Martin Luther King s Letter From Birmingham Jail1428 Words   |  6 PagesOn April 16, 1963, Dr. Martin Luther King, Jr. wrote what has become known as the â€Å"Letter from Birmingham Jail.† A long document, it was addressed to Birmingham’s local clergymen because they had been critical of his work and ideas. Dr. King believed their criticism was in good faith, and pointed out that he was in Birmingham because he had been invited by the local affiliate of the Southern Christian Leadership Conference, showing the religious commonalities between himself and the clergymen. HoweverRead MoreAntigone And Dr. Martin Luther King Jr. s Letter From Birmingham Jail1233 Words   |  5 PagesIn Sophocles’ Antigone and Dr. Martin Luther King, Jr.’s â€Å"Letter from Birmingham Jailâ⠂¬ , Antigone and Dr. Martin Luther King, Jr. used resistance against powerful leaders to follow their morals and make a statement. Dr. Martin Luther King, Jr.’s approach towards the reconstruction of society’s cultural understanding of segregation used civil disobedience in a more public and large-scale approach, whereas Antigone’s use of civil disobedience defied the law in a much more private, small-scale way toRead More Dr. Martin Luther King Jr.s Letter From a Birmingham Jail Essays1088 Words   |  5 PagesDr. Martin Luther King Jr.s â€Å"Letter From a Birmingham Jail† In King’s essay, â€Å"Letter From Birmingham Jail†, King brilliantly employs the use of several rhetorical strategies that are pivotal in successfully influencing critics of his philosophical views on civil disobedience. King’s eloquent appeal to the logical, emotional, and most notably, moral and spiritual side of his audience, serves to make â€Å"Letter From Birmingham Jail† one of the most moving and persuasive literary pieces of the 20thRead Moreâ€Å"a Comparison of Dr. Martin Luther King, Jr.’S ‘I Have a Dream’ Speech and ‘Letter from a Birmingham Jail’†.1444 Words   |  6 Pagesâ€Å"A Comparison of Dr. Martin Luther King, Jr.’s ‘I Have a Dream’ speech and ‘Letter from a Birmingham Jail’†. 9% Similarity Born in Atlanta Georgia in 1929, Dr. Martin Luther King Jr., conceivably lived as one of the greatest social and religious leaders in a country where a group of its citizens had to endure excruciating conditions of disenfranchisement, inferiority and degradation of a second class citizenship by reasons of race, color or origin. In effort to condemn allRead MoreAn Analysis of Letter from a Birmingham Jail Essay1090 Words   |  5 Pages Letter from a Birmingham Jail was written by Doctor Martin Luther King Jr. in April of 1963, as he sat, as the title states, in a Birmingham, Alabama jail. King had been jailed for his participation in a peaceful protest of segregation in public places such as lunch counters and public restrooms (Berkley, 2003). While jailed, King read a criticism of the protest by a group of white ministers, who felt such demonstrations â€Å"directed and in part led by outsiders† were â€Å"unwise and untimely†Read MoreRhetorical Analysis Of Martin Luther King Jr.976 Words   |  4 PagesMartin Luther King Jr. wrote numerous speeches in efforts to inspire the idea of non-violent protesting in hopes of eventually reaching racial equality. Under what conditions can a man with seemingly no connection to a local community step in and assume the mantle of leadership as a spokesman for a segment of that community’s population? In all of the speeches, one way or another , Dr. King used several different rhetorical devices in order to defend his own actions. In specific, two of his speechesRead MoreLetter From Birmingham Jail Analysis1617 Words   |  7 Pages1960’s faced solely due to the melanin in their skin (King 2). Among these African Americans was the reverend, doctor, humanist, husband, and Civil Rights activist, Mr. Martin Luther King, Jr. Dr. King was a middle class, black man with a life-long devotion of implementing ethnic equality to African Americans nationwide. Following one of Rev. King’s peaceful protests in Birmingham, Alabama, he was jailed on accounts of â€Å"parading without a permit† (King 3). While in jail, Martin Luther King, JrRead MoreLetter From A Birmingham Jail972 Words   |  4 PagesRhetorical Analysis: Letter from a Birmingham Jail Racism is part of America’s history. Historical leaders like Martin Luther King, Jr. brought the Injustice problems to the light. King, Jr. â€Å"Letters from a Birmingham Jail confronts racism in the United States of America through his response letter to the clergymen criticism, while he is in jail due to holding a protest in Birmingham, Alabama. King, Jr. wrote â€Å"Letter from a Birmingham Jail† to defend the non-violent protest. He claims that the protestRead MoreMartin Luther King Jr : Letter From Birmingham Jail Essay1678 Words   |  7 Pages Martin Luther King Jr: Letter from Birmingham Jail Hao Ran Hu SUNY Broome Hao Ran Hu Global History Professor St.Clair 2016 Martin Luther King Jr: Letter from Birmingham Jail One of the interesting Documents in World History is the ‘Letter from Birmingham Jail’ by Martin Luther King Jr who was born as Michael King in 1929 in Atlanta. His parents were part of

Distillation Experiment Free Essays

SUMMARY The aim is to observe distillation process of ethanol-water solution and to measure the alcohol content after process in this experiment. 500 ml of solution with an alcohol content of 32% (v/v) is used for this experiment. Temperature values are recorded for every 10 ml alcohol obtained in the flask. We will write a custom essay sample on Distillation Experiment or any similar topic only for you Order Now The process is repeated in our experiment and for the first process, the data collection process continues until the distillate reaches to 200 ml. The concentration of alcohol is measured for first process by hydrometer. For the second process, approximately 200 ml of distillate containing 70% alcohol is used and data collection continues until the distillate reaches 150 ml. Finally, the concentration of alcohol is also measured after 2nd process as 82%. INTRODUCTION The objective of this experiment is to distillate the alcohol-water solution into ethanol and water. Distillation is a process of separating mixtures based on differences in volatilities of components in a boiling liquid mixture. Distillation is a unit operation, or a physical separation process, and not a chemical reaction. The basic requirement of distillation is that the components of the liquid solution must have different boiling points. There are some types of distillation methods which are flash distillation, simple batch distillation, simple steam distillation, continuous distillation, vacuum distillation, etc. : Flash distillation It is a single stage process which liquid mixture is vaporized. The vapor and the liquid are come to equilibrium, and these phases are separated. Simple steam distillation This is a separation process at lower temperatures. This process is often used to separate a high boiling component from small amounts of nonvolatile impurities. Continuous distillation This is a process in which a liquid mixture is continuously fed into the process and separated fractions are removed continuously. Vacuum distillation It is used for some compounds having very high boiling points. Instead of the increasing the temperature too much, lowering the pressure is preferred in this distillation type. In this experiment we used simple batch distillation in order to distillate alcohol-water mixture. Simple batch distillation This is a separation process which the liquid charge is boiled slowly and the vapors are withdrawn as quickly as vapors form to condenser, where the distillate, condensed vapor, is collected. The first portion of vapor condensed will be the richest in the more volatile component. Vapor-liquid equilibria take an important role in distillation process. Vapor-Liquid-Equilibria (VLE) Constant pressure VLE data is obtained from boiling point diagrams. VLE data of binary mixtures is often presented as a plot, as shown in the figure below. The curved line is called the equilibrium line and describes the compositions of the liquid and vapour in equilibrium at some fixed pressure. Distillation experiment is applied to two miscible liquids which are ethanol-water, soluble in each other in all ratios. Mixtures of ethanol and water form an azeotrope. Azeotropic mixture: Azeotropic mixture is a solution that forms a vapor with the same concentration as the solution, distilling without a change in concentration. The composition of the liquid phase at the boiling point is identical to hat of the vapor in equilibrium with it, and azeotropes form constant-boiling solutions. The exact composition of the azeotrope changes if the boiling point is altered by a change in the external pressure. Ethyl alcohol and water form an azeotrope of 95. 6% at 78. 1 Â °C. Azeotropic systems give rise to VLE plots where the equilibrium curves crosses the diagonals. METHODS AND MATERIALS -Distillation apparatus -Alcoholmeter -Graduated cylinder -5 00 ml of 30% (v/v) water-ethanol mixture Source: Retrieved from http://www. baruch. cuny. edu/wsas/academics/natural_science/chm_1000/6_wine. df The distillation apparatus is for the separation of two miscible liquids by taking advantage of their boiling point differences. The mixture is put in the distillation flask, and a thermometer is located in there. The heater has a knob that is used to adjust the heating. Cold tap water is circulated in the condenser to condense the vapor. First, the ethanol – water mixture was poured into the distillation flask, and boiling chips were used to prevent over bubbling. Then the heater was turned on at a moderate level to prevent fast heating and better separation of the liquids. After the first drop of the distillate was obtained, the temperature was recorded. Every 10 milliliters, the temperature in the flask was recorded. At the end of the distillation, an alcoholmeter was used to measure the alcohol content of the distillate. 200 milliliters of distillate was distillated again in the same manner to obtain a higher alcohol percentage in the final product. DATA CALCULATION Notations used: A: Ethanol B: Water XA ? Mole fraction of ethanol in liquid YA ? Mole fraction of ethanol in vapor XB? Mole fraction of water in liquid YB ? Mole fraction of water in vapor Assumptions: – Pressure is 101,32kPa – Constant physical properties – Condensed fluid drops on the wall of still are neglected Initial data: – 500 mL of ethanol-water mixture is used for the first distillation. – 200 mL of ethanol-water mixture is used for the second distillation. Calculation: XA YA values can be calculated from the Raoult’s law equation; ? A + ? B = P PA* XA + PB* XB = P ? Since XA + XB = 1 PA* XA + PB* (1- XA)= P XA = (P – PB)/( PA – PB) The PA PB values were obtained according to the temperature data. (Acland,T. 2011) 1st DISTILLATION: T(? C)PBPAXAYAXBYB 7843,5100,11,0015551,0032540,000,00 78,544,4102,10,9864820,9940760,0135180,005924 7945,3104,10,9527210,9788620,0472790,021138 79,245,7104,90,9395270,9727240,0604730,027276 79,345,9105,30,9329970,9696460,0670030,030354 79,546,3106,20,9185310,9627710,0814690,037229 8047,2108,30,8857610,9467820,1142390,053218 80,548,2110,40,8540 190,9305540,1459810,069446 8149,2112,60,8220820,9136050,1779180,086395 81,550,2114,80,7913310,8966130,2086690,103387 8251,21170,7617020,8795810,2382980,120419 82,552,2119,30,7320420,8619480,2679580,138052 353,3121,60,7030750,8438010,2969250,156199 8455,4126,30,6476730,8073540,3523270,192646 8557,7131,20,5934690,7684880,4065310,231512 85,558,8133,70,567690,7491140,432310,250886 8762,4141,50,4920350,687160,5079650,31284 8864,8146,90,4448230,6449320,5551770,355068 88,566,1149,60,4217960,6227870,5782040,377213 9070158,10,3555050,5547310,6444950,445269 The average composition of total material distilled, Yav was measured by using hydrometer as 70%. So the final composition of remaining liquid,X2, can be obtained by material balance using Rayleigh equation: L1X1 = L2X2+ (L1 – L2)Yav 00(0,32) = 300 X2 + 200(0,7) ? X2 = 0,067 That means, 6,7 % of ethanol remained in the distillation still. 2nd DISTILLATION: T(? C)PBPAXAYAXBYB 78,544,4102,10,9864820,9940760,0135180,005924 79,546,3106, 20,9185310,9627710,0814690,037229 8047,2108,30,8857610,9467820,1142390,053218 8149,2112,60,8220820,9136050,1779180,086395 8251,21170,7617020,8795810,2382980,120419 8455,4126,30,6476730,8073540,3523270,192646 8864,8146,90,4448230,6449320,5551770,355068 9070158,10,3555050,5547310,6444950,445269 The average composition of total material distilled, Yav was measured by using hydrometer as 82%. So the final composition of remaining liquid,X2, can be obtained by material balance using Rayleigh equation: L1X1 = L2X2+ (L1 – L2)Yav 200(0,7) = 50 X2 + 150(0,82) ? X2 = 0,34 That means, 34 % of ethanol remained in the distillation still. DISCUSSION In first distillation, according to data obtained boiling point diagram is drawn. This graph can be seen as incomplete because some data is missing in order to complete graph since high temperature is not reached. Moreover, azeotropic point cannot be seen because we are not able to change pressure, so we cannot see that point and forward. In boiling point diagram graph for second distillation, we omit some of data because fraction is found negative, which is not possible. There may be error due to experimental condition or reflux. CONCLUSION In this experiment, our aim is to learn basic distillation concept and how to take and evaluate our data. We also learnt how to put data into boiling point diagram. In first distillation it is obtained 70% alcohol water solution and in the second distillation it is obtained 78% alcohol water solution. However, because of negative fraction values, we are not able to put all the data into boiling point diagram. REFERENCES Ackland, T. (2011). Home distillation of alcohol. Retrieved from http://homedistiller. org/ Geankoplis, C. J. (2003). Transport processes and separation process principles. Prentice Hall. Seperation Process. Distillation. Retrieved from http://www. separationprocesses. com/ Distillation/DT_Chp05. htm Wikipedia. Distillation. Retrieved from http://en. wikipedia. org/wiki/Distillation Wikipedia. Azeotropic Distillation. Retrieved from http://en. wikipedia. org/wiki/ How to cite Distillation Experiment, Essay examples