Van der Waals force

By the cause of branching the chain makes the molecule more compact, weakens the crystal lattice structure of the compound and thus drops the surface area. Hence, spreading forces reduces as there are fewer places for interaction, so decreasing the amount of energy required to break the intermolecular forces of attraction. 2-hexanone has the lowest point boiling point, as it much more branched and the third carbon has a functional group (double bond O), leading a high compacted molecule. Pentanol and hexanol molecules has the least amount of branching out of the four compounds above in the graph, and as such has the highest boiling…

with low vapor pressure. Vapor pressure of an alcohol is affected by many things, including boiling point. Vapor pressure and boiling point are directly related, so if the boiling point is increased, the vapor pressure is increased. Also molar mass affects vapor pressure. Molar mass and vapor pressure have an indirect relationship, so the lower the molar mass, the higher the vapor pressure. However, as the molar mass of any substance, like alkanes and carboxylic acids, increases the vapor…

boiling point increase when the addition of an extra carbon atom in a straight-chain homologous series of saturated alcohols occurs?” On average, as per calculations conducted, the boiling point increases by a magnitude of approximately 14.1 ℃. Granted such quantitative evidence, in addition to its corresponding visual plotting detailed in figure 2.1, it could reasonably be determined that a quite linear correlation indeed exists between carbon-chain length and boiling point. This is highly…

by the basic knowledge of intermolecular forces regarding hydrogen bonds, London Dispersion forces, as well as Dipole-Dipole, and simple ionic bonds in the case of sodium chloride. The molecule with the least amount of these forces is the one with the weakest bonds,…

a successful person to look up to influences her decisions in life. She wants to take on her mother’s role as a fashion designer and become the head of the company. She is extremely studious because she desires to attend Yale. Serena’s goal is to attend Brown but does not realize that her high status and popularity will not always get her what she wants. Unlike Blair, she slacks off in school and prefers to party. She has to be reminded many times from her mom to go to college and do something…

Dirk Bouts was a Northern Renaissance and Early Netherlandish painter. He was greatly influenced by Jan van Eyck and Rogier van der Weyden. He was known for his devotional panels and portraits and most of his paintings had to do with Biblical concepts. He lived during a time in history when the middle ages ended and the renaissance began. His painting, Moses before the burning bush, with Moses removing his shoes, is a beautiful rendering of the scene when Moses first beholds the presence of God,…

On the first day of class we each picked our favorite television character and the most prominent social identity of those characters on the board were caucasian male or female. For someone like me who social identifies as an upper class caucasian female I had figured that this would be a relatively easy assignment to choose three television characters that I identify with, but it was actually more difficult than I had thought. I had thought that since most media stars are what I also identify…

Part 2: Beauty in Painting: Not far from literature, painting, in its turn, is full of representations of beauty and some of its revelations. Notably, criterion beauty and its enigmatic purpose change from movement to another in terms of style and themes. Namely, Renaissance painting is a reaction against the earlier Medieval Art which focused only on religious dogma. It sheds light on the importance of beauty, individualism, and the teaching of humanism . Even the leading figures of the trend…

is a disturbance in the motor planning or programming of movements that result in phonetically and prosodically disordered speech. Within in this paper, there are four treatment plans discussed and they are as follows; repeated practice with rate and rhythm treatment which focuses on repetition of words and phrases while adding hand tapping during speech, script training which focuses on different sentences and phrases that the client practices, speech-music therapy which consists of a…

Wedding Portrait (1434, oil on wood, 82.2 cm x 60 cm, National Gallery, London) by Jan Van Eyck is one of the most extraordinary and mysterious paintings in art history. The complexity and rich detail makes it perplexing to art historians who have never been able to establish the true meaning behind the portrait. The most notable opinion is that of Erwin Panofsky, who argues that the Arnolfini was a marriage ceremony and was witnessed by the painter, shown with his reflection in the mirror. In…