The Esterification kinetics of acetic acid with ethanol in the presence of sulfuric acid as a homogenous catalyst was studied with isothermal batch experiments at 50-60°C and at a different molar ratio of ethanol to acetic acid [EtOH/Ac]. Investigation of kinetics of the reaction indicated that the low of [EtOH/Ac] molar ratio is favored for esterification reaction, this is due to the reaction is catalyzed by acid. The maximum conversion, approximately 80% was obtained at 60°C for molar ratio of 10 EtOH/Ac. It was found that increasing temperature of the reaction, increases the rate constant and conversion at a certain mole ratio, that is due to the esterification is exothermic. Activity coefficients were calculated using UNIFAC program. Results showed deviation in activation energy in the non-ideal system of about 20% this is due to the polarities of water and ethanol compared to the non-polar ethyl acetate this dissimilarity leading to strong non- ideal behavior. The homogenous reaction has been described with simple power-law model. The chemical equilibrium combustion calculated form the kinetic model in agreement with the measured chemical equilibrium.
The main purpose of this study is to investigate the relationship between smoking and increased risk if diseases.
It has been estimated that gland of smoker in the world 3.1 billion smoker . Glands an estimated 4.1 million deaths per day . The proportion of death in developing countries 70% due to relationship between poverty and smoking .
The damage caused by smoking not only no the Alzbn users , but to millions of people around them .
According to medical studies to confirm the relationship between forced smoking and increased risk of heart diseases , lung cancer , and mental diseases . it is surprising
... Show MoreStop the search on the performance of the stylistic literary messages sent by
Abu Mohammed Amer bin Said Altakrna to the kings of his time and Ullach
highlighting the method of the three levels is psychological and away the consignee
and the receiver Taster literary text.
Level voice and rhythmic, which dealt with (alliteration and Naturalization
voice, and repetition and parallelism, and rhyme and toning) and its impact on the
taste and the emotional art between the sender and the receiver Bashklah.
Who has studied the structural level (introductory sentence order methods in the
messages, generally have much style presentation and brief delays and actor, and
then end the moral and intellectual martyrdom and de
لاحظ صناع القرار السياسي عدم مشاركتهم لمجموعة من الطوائف الاجتماعية في صنع القرار السياسي للدولة، مما دفعهم لتقوية هذه الطوائف، وتمت التدقيق في الجانب النسوي وعدم مشاركتهم في اتخاذ القرارات رغم الفئة الكبير منهم في المجتمع، مما أدى لاتخاذ أنظمة تساعد على تمثيل هذه الفئة في الحكم النيابي من خلال نظام الكوتا.
We have studied in this research litter (Taa) a morphological , sonic indicative and comparative study among four Semitic languages. They are Arabic , Hebrew, Syriac and Akkadian languages . We have divided the research into a number of pivots beginning with an entrance about the letter (Taa) in Semitic languages and the symbols which are used by these languages referring to . Then we have studied (Taa) from sonic side with letters phenomenon (b, g, k, p, t) the six in both Hebrew and Syriac languages . The letter (Taa) is formed one of them and the sonic change that is happening in articulation (Taa) according to sonic rules related to these letters in case of emphasis or in case of neglected (not emphasis). Then we have studied the pro
... Show Moreتضطلع المصارف على اختلاف انواعها بعمليات كثيرة متطورة, نظمها قانون التجارة رقم (30) لسنة 1984 في الفصل الثاني من الباب الرابع . و العمليات المصرفية على تنوعها تؤثر في الحياة الاقتصادية للبلد بشكل مباشر وان نجاح المصارف او اخفاقها في ممارسة هذه العمليات ينعكس هو الاخر على النشاط الاقتصادي في بقية القطاعات، مما يقتضي اخضاع المصارف الى رقابة واشراف البنوك المركزية لضبط اعمالها وتوجيهها وجهة سليمة تخدم مصالح ج
... Show Moreعرض كتاب المدخل الى دراسة الاستراتيجية
قسم المؤلف كتابه على ستة فصول تسبقها مقدمة وتعقبها حالمة، فقد أبانت المقدمة الدوافع والأسباب التي تقف وراء عنوان الكتاب، إذ وصفه بأنه يجمع بين دفتيه مادة علمية غايتها التعرف على بعض الأديان التي يدين معظم البلدان مع بيان تاريخ نشأتها ومناصريها. وقد حدد الديانات التي سيقتصر الكتاب على دراستها، وهي: الصابئة المندائيين والديانات الهندوسية والبوذية، والجينية والكونفوشية في الصين والشتوية في اليابان كونها من ا
... Show MoreThe problem of informal settlements in Iraqi is one of the most serious problems due
to its economic, social and security impacts which jeopardize the society safety and stability.
This study investigates the present situation of informal settlements in the Baghdad
governorates as well as approaches followed in making decisions to either upgrade or remove
those areas. Requirements of each decision are also discussed.
Study methods relied on both office and field studies to collect data and information
needed. The study revealed important findings that would help take appropriate measures that
deal with the informal settlements in Iraqi. The study also proposes effective mechanisms to
preclude both an increase in c
Justice is a human values that heavenly religions urged, and made her the fundamentals of individual and social and political life, in Allah almighty sent justice messengers, and sent down his books,as the Earth and the heavens with justice, it is a legal system in which a person takes his dues, which protect the rights of the individual And punish him when committing mistakes, so all religions to achieve chiefly Christianity, the Bible that Allah almighty qualities of Justice, and it is not affected by love or hate, and no factors or percentages, but granted to all who are on earth that despite money and prestige, or what was between them. Of affection or no matter, as well as injustice, whether unjustly or self for others, especially the
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