Exothermic

For the reactive flash volatilization (RFV) process based on the knowledge that the catalyst bed is preheated to high temperature, pyrolysis of the heated cellulose particles on the surface of the bed is expected to be fast enough that it will not be a rate-limiting step. Hence, the kinetics of the RFV of cellulose reduces to gasification of the produced volatile organic compounds (VOCs) on and in the catalyst bed. To represent the RFV of the VOCs from flash pyrolysis of cellulose, Aspen Plus…

Identification of a Liquid Objective This experiment was performed out to determine the identity of an unknown liquid sample by investigating its solubility in water, hexane and ethyl alcohol. Also, its density and boiling point were obtained and compared to the theoretical values. Theory Chemical substances can be identified through investigation of their chemical and physical properties and then comparing the experimental values to the standard values. Physical properties do not change the…

speed up the reaction so that the result is a flume of bubbles instead of a slow release of oxygen. Without the catalyst the reaction still happens naturally but so slow and small that humans cannot see it with the naked eye. The reaction is also exothermic so use caution due to the beaker getting incredible…

1. Brief history of the company/factory ? In 1930, Dr. Minoru Shirota, who was conducting research in a microbiology lab at the Medical Faculty of Kyoto University in Japan. He succeed in culturing a strain of lactic acid bacteria beneficial to human health. This bacterium was named "Lactobacillus casei Shirota strain. It took Dr. Shirota another 5 years of research to find the right food medium for the Lactobacillus casei Shirota bacteria. In 1935 the first bottle of Yakult, a fermented…

happen in the lab, but she would love to expand her experiences to the outside world. Right now she gets her kicks by pushing the limits of her work. The rush of adrenaline she gets from mixing unstable compounds or testing the restrictions of exothermic reactions is a true joy. If she loses an eyebrow or two during the process it’s all good. She’ll consider it a small sacrifice in the name of a good time and science! It goes without saying that Honey Lemon is extremely intelligent since…

After reading The Running Dream by Wendelin Van Draanen, I think that it would be a wonderful addition to the books available for literature circles and a great candidate for the competition. Along with having a great plot line with meaningful morals for the reader, The Running Dream is a awesome book for note taking; including many vocabulary words, figurative language and persuasive language on hand. The Running Dream presents a well thought out message to the reader through the view of…

able to undergo addition reactions due to the strength of their C-C -bond (60-65 kcal/mol) which is lower than the strength of a typical -bond (80-100 kcal/mol) between Carbon and other atoms. Adding a reagent across the double bond results in an exothermic reaction because one -bond is replaced by two higher energy -bonds. Accordingly, the addition of HBr(aq) to 1-Hexene involves the protonation of 1-hexene and is expected to produce a secondary carbocation, 2-bromohexane.…

then the energy is absorbed. The amount of heat that is released or absorbed will also be in units of Joules or Kilojoules per mol. There are two other terms to be familiar with, which are endothermic and exothermic. Endothermic is another way of referring to the absorption of energy and exothermic is the release of energy. For this experiment, you will be using a calorimeter. What is a calorimeter? A calorimeter is a device used to measure the amount of heat that is involved in a chemical…

Following WHMIS, it is vital that safety be a priority when conducting labs. Especially when handling chemicals, the ideal setup of labs should avoid any obstructions and potential hazards that may occur. This is due to the possible dangers: flammable and combustible chemicals (alcohol, sodium), oxidation (hair dye), bio hazardous products (which causes AIDS, rabies), toxic items (lead, benzene), poison (carbon monoxide), corrosive compounds (bleach), dangerously reactive chemicals (fluorine)…

White Vinegar, Flame or stove, Pot, Water, Ice, a few leaves of red cabbage, and safety goggles. Question: How does equilibrium work with respect to temperature and concentration? Hypothesis: Depending on whether the reaction is endo-thermic or exothermic the equilibrium will shift to one side, this is also true for increasing or decreasing pressure (which affects the concentration). Background: Henry Louis Le Chatelier was a renowned French chemist. Born on October 8, 1850, Henry was a…