Analysis of European Literature essays

Analysis of European Literature essays In a world in which lives are shaped by unalterable choices and by accidental events, a world in which everything occurs but once, existence seems to lose its substance, its weight. Hence, we feel "the unbearable lightness of being" not only as the consequence of our private actions, but also in the public sphere, and the two inevitably intertwine. The novel revolves around the idea of eternal return. A woman would rather be burdened by the pains a man brings her than to live without any burden at all due to the absense of love. The heaviest of burdens is an image of life's most intense fulfillment. Having completely no burden would be considered an illusion if ever it's possible. The absolute absence of burden causes man to be lighter than air, take leave of the earth, and become only half real; his movements are free as they are insignificant. All throughout the story, Tereza struggles to win Tomas' heart completely without having to share it with anyone else and Toma! s struggles to overcome his fear and desire of women, which results in his continuous infidelities. The novel essentially is about philosophy and relationships. It is about how concepts come to mean different things to each of us and about the difficulty of really connecting with another human being, all set under the shadow of the communist government in Czechoslovakia. ...

Dehydration Reaction Definition in Chemistry

Dehydration Reaction Definition in Chemistry A dehydration reaction is a chemical reaction between two compounds where one of the products is water. For example, two monomers may react where a hydrogen (H) from one monomer binds to a hydroxyl group (OH) from the other monomer to form a dimer and a water molecule (H2O). The hydroxyl group is a poor leaving group, so Bronsted acid catalysts may be used to help to protonate the hydroxyl to form -OH2. The reverse reaction, where water combines with hydroxyl groups, is termed hydrolysis or a hydration reaction. Chemicals commonly used as dehydrating agents include concentrated phosphoric acid, concentrated sulfuric acid, hot ceramic and hot aluminum oxide. A dehydration reaction is the same as a dehydration synthesis.  A dehydration reaction may also be known as a  condensation reaction, but more properly, a dehydration reaction is a specific type of condensation reaction. Dehydration Reaction Examples Reactions that produce acid anhydrides are dehydration reactions. For example acetic acid (CH3COOH) forms acetic anhydride ((CH3CO)2O) and water by the dehydration reaction2 CH3COOH → (CH3CO)2O H2ODehydration reactions are also involved in the production of many polymers. Other examples include: Conversion of alcohols to ethers (2 R-OH → R-O-R H2O)Conversion of alcohols to alkenes (R-CH2-CHOH-R → R-CHCH-R H2O)Conversion of amides to nitriles (RCONH2  Ã¢â€ â€™ R-CN H2O)Dienol benzene rearrangementthe reaction of sucrose with concentrated sulfuric acid (a popular chemistry demonstration)