Lab activity 1: Effect of temperature‚ concentration‚ and pressure on equilibrium Introduction Our ongoing discussion has been on systems at dynamic equilibrium: for a reversible reaction‚ the rate of the forward reaction is equal to the rate of the reverse reaction. What happens if equilibrium is disturbed? In this lab activity‚ we are going to examine the effect of changing reaction conditions on the position of equilibrium. Part I: Effect of temperature We will consider the equilibrium
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cheese. Lactic acid bacteria(LAB)‚ a bacteria that can be found in the production of cheese‚ its stress gene was investigated in the experiment by using various biochemical and genetic techniques to identify and extract. The characterisation of the strain illustrates how identification of strains differ using different methods‚ such as gram stain and 16s rRNA screening. After the characterisation‚ the stress gene isolation assist the further understanding of the gene on LAB be giving different stress
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The Domino Effect 9-26-01 Abstract: In this experiment dominos were used to investigate how distance‚ time‚ and average speed is interrelated by maximizing the speed of falling dominoes. This was done by lining up 28 dominos up against a meter stick 0.5 cm‚ 1.0 cm‚ 1.5 cm‚ 2.0 cm‚ and 2.5 cm away from each other. Before the experiment the average width of a domino was taken. At the beginning of each of these 5 trials the dominos were lined up against the meter stick. The lengths of all the dominoes
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start a chemical reaction. This occurs when energy is added to reactants. Amino acid chains are made up by their unique folds which results in formation. Since enzymes are proteins‚ each one consists of its own amino acid in a specific order. Since hydrogen bonds are weak‚ they form between amino
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of hydrogen peroxide with a fixed mass of catalyst. A catalyst is a substance‚ which alters the speed‚ or rate of a chemical reaction but is chemically unchanged at the end of the reaction. The two factors that we can change are the temperature and the concentration. We chose to vary the concentration of hydrogen peroxide. The catalyst to speed up the reaction without affecting the result will be manganese oxide. Prediction: I predict that the higher the concentration of hydrogen peroxide‚ the
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When liver was added to hydrogen peroxide is caused and instantaneous reaction time. This is due to the enzyme catalase. If the enzyme catalase was not present in the human body‚ hydrogen peroxide‚ which is highly toxic to cells‚ would attack the unsaturated fatty acid compounds in the membrane of lipids.2 This would cause substantial damage to the membrane structure. Since catalase utilizes hydrogen peroxide as both an electron acceptor and donor it oxidizes hydrogen peroxide isolating oxygen
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International Journal of Engineering Research and Development e-ISSN: 2278-067X‚ p-ISSN : 2278-800X‚ www.ijerd.com Volume 5‚ Issue 2 (December 2012)‚ PP. 44-46 System Identification-Different Techniques Ramesh Kr1‚ Chitranjan Kr2‚ Ruchita3 1 National Institute of Technology Patna‚ 2PSCET Vaishali‚ 3RIET Jaipur Abstract:- Engineering applications require description of the dynamic behavior of the system. Though a no. of applications are known in the field of system identification‚ three
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Observations made that constituted a positive (+) for inotropic effect were signs of increased force in regards to the heart muscle contracting. Likewise‚ a negative (-) inotropic effect was noted for signs of less forceful contractions of the pig heart. A positive chronotropic effect was denoted by an increase in heart rate‚ and conversely a negative chronotropic effect was observed by a decrease in overall heart rate shortly after the drugs were administered. Discussion: The results obtained
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[Name] [Teacher] [Course] [Date] Catalase Lab Report An enzyme is something that helps to speed up a chemical reaction. The enzyme changes from reaction to reaction‚ but it always has the same impact. However‚ certain variables may cause the enzyme to have a more or less significant impact on the speed of each reaction. One of these variables that changes the effectiveness of an enzyme is temperature. There is an optimal functioning temperature for each enzyme in each reaction‚ depending on
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Introduction. The ’Stroop Effect ’ was first introduced in 1935. It originated from the theory of automatic processes. It is clear that some processing activities become automatic as a result of prolonged practice eg. Typing‚ driving‚ etc. Automatic processes therefore are fast‚ require no attention and are unavoidable. Stroop believed that there was some evidence that word identification may be a form of an automatic process. In the experiment participants had to name the colours in which the
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