The rusting of iron is an exothermic reaction, 4 Fe (s) + 3 O₂ (g) → 2 Fe₂O₃ (s). When the coatings are remove to expose metal surface, the system will _____. * a. Remain constant b. Shift to the right c. Unaffected d. Shift to the left
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- TVA’s Kingston Fossil Plant near Cedarville, Tennessee, burns about 14,000 tons of coal a day. A typical rail car is 53 ft long from coupling to coupling, weighs 30 tons empty and can carry 100 tons of coal. How many minutes would you have to wait at a crossing for this train to pass, each day, if it was pulled by four locomotives, each 70 ft long and moving at 10 miles per hour through town? Such delays cause decreased ability to provide effective emergency response times and interference with commuters and local freight delivery affecting the local economy.You can use this as your reference: https://www.youtube.com/watch?v=2J2t5FRnMtMA student dissolves 10.3g of ammonium nitrate NH4NO3 in 300.g of water in a well-insulated open cup. He then observes the temperature of the water fall from 22.0°C to 19.3°C over the course of 3.1 minutes. Use this data, and any information you need from the ALEKS Data resource, to answer the questions below about this reaction: NH4NO3s -> NH+4aq + NO−3aq You can make any reasonable assumptions about the physical properties of the solution. Be sure answers you calculate using measured data are rounded to the correct number of significant digits. Is this reaction exothermic, endothermic, or neither? If you said the reaction was exothermic or endothermic, calculate the amount of heat that was released or absorbed by the reaction in this case. Calculate the reaction enthalpy ΔHrxn per mole of NH4NO3.
- Given: F2(g) + 2 e- ⟶ 2 F-(aq) Eo = +2.87 v Hg2+(aq) + 2 e- ⟶ Hg(l) Eo = +0.87 v Calculate ΔGo for: Hg(l) + F2(g) ⟶ Hg2+(aq) + 2 F-(aq) ΔGo = -nFEo F = 96500111.1Ms = ? ks show work, report sig figs and unitsCould someone Please Help Me with this! No Plagirism Please! 3 · Provide at least 1 example of a reversible process (either physical or chemical). What has to be done to the process to make it reverse? Part 2—Copper (II) Chloride System - Cu(H2O)62+(aq) + 4Cl–(aq) + heat ⇆ CuCl42–(aq) + 6H2O(l) Blue Green Test Tube Procedure (Impacts) Predictions Observations (Result/Shift) 1 No tests (control) 2 Add 4M NaCl dropwise until change is observed *increases concentration of Cl─ in the system 3 Add 0.05M AgNO3 drop-wise until change is observed *decreases concentration of Cl─ in the system 4 Add H2O dropwise until change is observed *increases concentration of H2O in the system 5 Add acetone dropwise until change is observed *decreases concentration of H2O in the system 6 Place in hot water bath for 1-2 minutes *adds heat to the reaction system…
- Green Chemistry and Atom Economy The purposeful design of chemical products and processes that minimize the use of environmentally hazardous substances and the generation of waste is known as green chemistry. Green chemistry is a philosophical approach that is being applied to many areas of science and technology, and its practice is summarized by guidelines known as the “Twelve Principles of Green Chemistry” (see details at this website (http://openstaxcollege.org/l/16greenchem) ). One of the 12 principles is aimed specifically at maximizing the efficiency of processes for synthesizing chemical products. The atom economy of a process is a measureof this efficiency, defined as the percentage by mass of the final product of a synthesis relative to the masses of all the reactants used: atom economy = mass of product/mass of reactants × 100%Though the definition of atom economy at first glance appears very similar to that for percent yield, be aware that this property represents a…Green Chemistry and Atom Economy The purposeful design of chemical products and processes that minimize the use of environmentally hazardous substances and the generation of waste is known as green chemistry. Green chemistry is a philosophical approach that is being applied to many areas of science and technology, and its practice is summarized by guidelines known as the “Twelve Principles of Green Chemistry” (see details at this website (http://openstaxcollege.org/l/16greenchem) ). One of the 12 principles is aimed specifically at maximizing the efficiency of processes for synthesizing chemical products. The atom economy of a process is a measureof this efficiency, defined as the percentage by mass of the final product of a synthesis relative to the masses of all the reactants used: atom economy = mass of product/mass of reactants × 100%Though the definition of atom economy at first glance appears very similar to that for percent yield, be aware that this property represents a…3Cu2+(aq)+2Fe(s)↽−−⇀3Cu(s)+2Fe3+(aq) ΔrH∘=−288kJ/mol What is the value of ΔrG?
- Give at least two (2 ) chemical processes happening around you that you think happens too fast and you want to be slowed down and at least two (2 ) processes that are too slow that you want to happen faster .The reaction SO2(g)+2H2S(g)⇌3S(s)+2H2O(g)SO2(g)+2H2S(g)⇌3S(s)+2H2O(g) is the basis of a suggested method for removal of SO2SO2, a pollutant that irritates airways causing coughing, from power-plant stack gases. The values below may be helpful when answering questions about the process. Substance ΔG∘fΔGf∘(kJ/mol)(kJ/mol) ΔH∘fΔHf∘(kJ/mol)(kJ/mol) H2O(g)H2O(g) −−228.6 −−241.8 H2O(l)H2O(l) −−237.1 −−285.8 SO2(g)SO2(g) −−300.4 −−296.9 SO3(g)SO3(g) −−370.4 −−395.2 H2S(g)H2S(g) −−33.01 −−20.17 S(s)S(s) 0 0 Assume that the partial pressure of sulfur dioxide, PSO2PSO2, is equal to the partial pressure of dihydrogen sulfide, PH2SPH2S, and therefore PSO2=PH2SPSO2=PH2S. If the vapor pressure of water is 24 torrtorr , calculate the equilibrium partial pressure of SO2SO2 (PSO2PSO2) in the system at 298 KK. Express the pressure in atmospheres to two significant figures. Kp= 8*10^15How do you convert 604 mK/s to K/s and micro Kelvin/ms?
