ENGINEERING Reaction Engineering CGC035 / CGC052 Problem Sheet 3 - Fluid-fluid reactions 1. The reaction rate for the heterogeneous reaction A(g) + B(l)→ products is second order according to the expression -rA=kCACB and it is relatively slow compared to mass transfer so it takes place in the bulk of the liquid. Combine the following rate expressions for diffusion through the gas and liquid films‚ -rA=kAga(pA-pAi) and -rA=kAlaCAi-CA‚ with Henry’s law pAi=HACAi and the reaction rate
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Week 10: Oxidation and Reduction Reactions: The Reactions of Copper Data: Part I: Preparing a solution of copper (II) nitrate Initial mass of copper wire: .520g Mass of copper wire after vigorously scouring: .518g Observations of Copper (II) ribbon mixed with HNO3: Solution turned green. Thick brown gas formed. Copper (II) bubbled vigorously. Cu (II) dissolved‚ solution appeared green/blue. After the addition of H2O a blue crusty precipitate formed. Part II: Synthesis of solid copper
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Coupled Reactions ABSTRACT A way to drive a non-spontaneous reaction forward is by coupling it with another reaction that is highly spontaneous‚ resulting to a spontaneous overall reaction. In this study‚ since the extraction of C(s) from CO2(s) is a non-spontaneous process‚ it was coupled with the oxide formation reaction of Mg‚ a reaction with high spontaneity‚ so that the process of the extraction of C(s) would proceed. The reactions and products which were a mix of black and white
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n this lab experiment factors that affected solubility are temperature‚ liquids‚ concentration‚ pressure‚ polarity‚ and molecule. In this experiment we use temperature‚ centrifuge‚ and concentration solutions to be able to achieve the results that we wanted. Step one of the experiment was to mix HCl‚ to cause a precipitation form‚ after that we had to decant the solution‚ then we used a centrifuged to separate the the precipitate of the supernatant liquid. After the decant was done‚ then the process
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Publication No. 91860 Rate of Reaction of Sodium Thiosulfate and Hydrochloric Acid Rate Laws Introduction The purpose of this demonstration is to investigate the effect of sodium thiosulfate concentration on the rate of reaction of sodium thiosulfate with hydrochloric acid. The reaction‚ which produces solid sulfur‚ will be followed by measuring the time needed for the reaction mixture to become opaque. The results will be analyzed graphically to determine the order of reaction— the mathematical relationship
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An Investigation into the Factors Affecting the Rate of the Reaction between Calcium Carbonate and Hydrochloric Acid A chemical reaction is the process by which atoms or groups of atoms are redistributed‚ resulting in a change in the molecular composition of substances. The reaction rate is how quickly a reaction occurs and this can be affected by four different factors: ¡¤ changing the surface area of any solids involved ¡¤ changing the concentration of reactants in solution ¡¤ changing the temperature
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price above the equilibrium price reduces social welfare In a free market demand and supply alone determine the price. This means that quantity of demand and quantity of supply equate at this point is where the price is set which is therefore called equilibrium price. (Griffiths‚ 2011) Figure 1 illustrates where supply and demand intersect‚ this being the Equilibrium price and Quantity
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PEREGRINO‚ Marianne ECON103 MK2A REACTION PAPER UNEMPLOYMENT IN THE PHILIPPINES According to Philstar.com‚ unemployment rate in the Philippines rose to 7.5 percent in April from last year’s 6.9 percent. The National Economic and Development Authority (NEDA) said the country’s unemployment rate increased by 0.6 percent due to a lower level of employment amid a slightly higher labor force level. Majority of the unemployed were high school graduates (31.7 percent)‚ college graduates (21
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Name:Ashley Waller|Date:10/17/12|Class:|Reaction Paper #:2| Title of the Article:Consumers Unlikely to Rekindle the Recovery| Date of Publication: July 2‚ 2012Author: Casselmen‚ Ben| Summary:In this article‚ it talks about how we should not rely on the consumers for the economic recovery. As Americans returned to work‚ the theory went; they would have more money to spend on everything from clothes to vacations to houses. As demand rose for products and services‚ businesses would be forced to hire
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ction paper Reaction Paper The play entitled ‘’Insect Talk’’ focused on the Global Warming issue and how it affects our ecosystem especially to insects. After watching this play‚ some thoughts about the effects of global warming enter to my mind. The negative effects of global warming are numerous‚ and we hear about them all of the time. As the earth warms‚ insects can more easily migrate to new areas. This creates a huge problem for the local environments‚ because the animals and other insects
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