Q: Describe the process of determining the Activation Energy?
A: The minimum energy has to be provided to the reactant to result in a chemical reaction, called…
Q: Assuming the activation energies are equal, which of the following reactions will proceed at a…
A: Solution- Activation energy is the extra energy needed by the molecules such that reactant molecules…
Q: For the reaction shown, what is true for the rate and extent of the reaction with an increase in…
A: If the temperature of a reaction increases then the kinetic energy of the reaction increase so the…
Q: Based on activation energies and energy changes and assuming that all collision factors are the…
A:
Q: For the following reaction profile, indicate E Reaction coordinate a) the positions of reactants and…
A: a) The initial component of the curve shows the reactant and final shows products hence the…
Q: Why does a reaction's activation energy not show in the reaction's final G?
A: a reaction's activation energy not show in the reaction's final G
Q: How can the activation energy of a reaction be changed?
A: Activation energy of a reaction can be changed by using catalyst. A positive catalyst decrease the…
Q: Under which circumstances is a chemical reaction generally the slowest? Select one from each pair (3…
A: Given statement is : Under which circumstances is a chemical reaction generally the slowest ?…
Q: B Reaction Coordinate /hat does arrow 'C' represent? the heat of reaction for the forward reaction…
A: Activation energy is defined as the minimum amount of energy required by the reacting molecules to…
Q: Define the following :(i) Order of a reaction(ii) Activation energy of a reaction
A: Chemical kinetics tells about the rate of reaction at which it occur.
Q: On the graph below, sketch the energy diagram for a reaction that has an activation energy of…
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Q: Which reaction responds more strongly to changes of temperature, one with an activation energy of 52…
A: Given: Two reactions one with Ea value 52 kJ mol-1 and other with Ea value 25 kJ mol-1 Take a look…
Q: 16 (g) → C2H4 (g) + H2 (g) in the figure given be- w. Calculate nhe activation energy for forward…
A: Dear student I have given answer to your question in the image format. If you like the answer then…
Q: Given the reaction inside the container, CO2 (g) + H2O (l) --> H2CO3 (aq). What will happen if the…
A: We know that When there is an increase in pressure, the equilibrium will shift towards the side of…
Q: performed on a chemical reaction will lower it's activation energy? i) increasing the concentration…
A: Activation energy is the minimum amount of energy needed by the molecules to complete /happen a…
Q: c) What is the activation energy in each direction? rate of the reverse reaction?
A: C) activation energy in forward direction= energy of activated comlpex-energy of rectants=…
Q: 14. What is activation energy? Is it always constant for the same reaction? Why ? (3pts)
A: Given Activation energy activation energy is always constant for the same reaction
Q: he activation energy for the gas pha HCH¬Br- C,H, + HBr
A: Arrhenius equation gives temperature dependence of reaction rates. its formula is: where, k is rate…
Q: Which of the following components in the reaction below is a catalyst? H,O, + I H,O + IO (slow) H2O,…
A: Catalyst is a chemical substance that present in a chemical reaction to increase the rate of…
Q: Assuming the activation energies are equal, which of the following reactions will occur at a higher…
A: Activation energy is the extra energy needed by the molecules such that reactant molecules gets…
Q: 16. The activation energy of a reaction can be lowered by (a) raising temperature. (b) removing a…
A:
Q: The activation energy is the minimum amount of energy necessary for a chemical reaction to occur. O…
A: Activation Energy (Ea) :- Yes, activation energy is the minimum amount of energy required for a…
Q: Why is understanding reaction rates significant?
A: To explain: Why is understanding reaction rates significant?
Q: Which of the statements given about the catalyst is not correct? D A catalyst changes the mechanism…
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Q: Which step has the highest activation energy?
A: The activation energy (Ea) is the minimum energy that is required to start any reaction Here, the…
Q: Which of the following best describes a catalyst? O It increases the number of collisions between…
A: In order to separate a mixture of liquid , there should be difference in their boiling point.
Q: what is the effect on k as the activation energy for a reaction increases
A: The Arrhenius equation is given as :
Q: What is the activation energy of a reaction that is three times faster at 40.0 °C than it is at 20.0…
A: we have to calculate the activation energy for the reaction
Q: Which of the following changes will affect the activation energy of a reaction? 1. Increasing or…
A: Activation energy: When the reactant molecules convert into the products, they required the minimum…
Q: Which energy difference in the energy profile below corresponds to the activation energy for the…
A: The Activation energy is the minimum amount of energy required for the reaction to occur . From the…
Q: 2. Describe the following quantities: activation energy (Ea), barrier height (Eb), threshold energy…
A: Answer is given below
Q: If a catalyst changes the activation energy of a forward reaction from 117 kJ/mol to 96 kJ/mol, what…
A: Catalyst can be defined as a substance which increases the rate of reaction without being consumed.…
Q: Which of the following collisions will initiate the reaction? The energy of the collision is written…
A: To initiate the reaction by a collision is possible only when the collision energy is equal to or…
Q: Determine the activation energy for the reaction of OH with H, reaction.
A:
Q: Define the following terms:(i) Order of a reaction.(ii) Activation energy of a reaction.
A: To find: The definition for Order of a reaction and Activation energy of a reaction
Q: Draw full reaction pathway diagrams including activation energY a the combustion of sulfur to form…
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Q: In the reaction: 2 C2H6(g) + 7 O2(g) -> 4 CO2(g) + 6 H2O(g), increasing the concentration of C2H6(g)…
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Q: 5. The measurement of reaction rates as a function of temperature provides information on the…
A: Rate of reaction is the change in the concentration of the reactants and products with respect to…
Q: Using the following potential energy diagram, determine the activation energy (each division is 10…
A: Answer:- The activation energy is the amount of energy given to reactants to undergo chemical…
Q: For the reaction shown, what is true for the rate and extent of the reaction with an increase in…
A:
Q: For the following reaction profile, indicate a. the positions of reactants and products. b. the…
A: The reaction coordinate diagram shows the energy of the reactants, products, and the transition…
Q: Catalysts speed up the rate of a reaction by increasing the activation energy Select one: O True O…
A:
Q: _15. As the temperature of a reaction is increased, the rate of the reaction increases beçause the…
A: Option B is correct answer.
Q: What is ∆H (in kJ/mol) for a reaction where the activation energy is 250 kJ/mol while the activation…
A: Given : Activation energy of forward reaction = 250 KJ/mol Activation energy of reverse reaction =…
Q: How does the amount of reactant account for the differences in the rate of reaction?
A: The rate of reaction directly depends upon the order of reaction. Follow step-by-step explanation.
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- Before the introduction of chlorofluorocarbons, sulfur dioxide (enthalpy of vaporization, 6.00 kcal/mol) was used in household refrigerators. What mass of SO2 must be evaporated to remove as much heat as evaporation of 1.00 kg of CC12F2 (enthalpy of vaporization is 17.4 kJ/mol)? The vaporization reactions for SO2 and are SO2(l)SO2(g) and CCl2F(l)CCl2F2(g), respectively.For a diene halogenation reaction at 0 degrees Celsius, assume that 2.50 g of 1,3-butadiene is used, 50 mL of ether is used as the solvent, and the concentration of HCl is 3.00M. What is the volume of HCl required to preform a diene halogenation reaction and the theoretical yield of products of the reaction. (Please include the number of moles of each reactant and product)A proposed mechanism for ozone destruction in the late spring overnorthern latitudes in the lower stratosphere begins with the photochemicaldecomposition of ClONO2 to Cl and NO3, followed by photochemicaldecomposition of the latter to NO and O2. Deduce a catalytic ozonedestruction cycle, requiring no atomic oxygen, which incorporates thesereactions. What is the overall reaction?
- Prof. Neiman and Prof. James were first to discovered in 1973 that chlorofluorocarbons (CFCs) were depleting the Earth’sozone layer when released into the atmosphere. Once they reach the stratosphere, Clis released from the CFCs molecules by interaction with UV light. Free Cl atoms areable to react with ozone in a catalytic cycle that converts O3into the more stable O2.It is estimated that a single Cl atom is able to react with∼100000 O3molecules.Although CFCs production was banned in 1996, there are still a substantial numberof motor vehicle air conditioners (MVACs) that use CFC-12 (CF2Cl2) as refrigerant.The average CFC-12 emission rate from operating MVACs has been estimated tobe 59.5 mg per hour per vehicle (Zhang et al.Environ. Sci. Technol. Lett.2017).How much chlorine, in kg, is added to the atmosphere in a year due to 100 millionMVACs using CFC-12 as refrigerant?A water contains 50.40 mg · L−1 as CaCO3 of carbon dioxide, 190.00 mg · L−1 as CaCO3 of Ca2+ and 55.00 mg · L−1 as CaCO3 of Mg2+. All of the hardness is carbonate hardness. Using the stoichiometry of the lime soda ash softening equations, what is the daily sludge production (in dry weight, kg · day−1) if the plant treats water at a rate of 2.935 m3 · s−1? Assume that the effluent water contains no carbon dioxide, 30.0 mg · L−1 as CaCO3 of Ca2+ and 10.0 mg · L−1 as CaCO3 of Mg2+. Be sure to calculate the mass of CaCO3 and Mg(OH)2 sludge produced each day.Chemistry of Fire Extinguishing Agents: Review and answer the below scenerios. a. The OSHA regulation at 29 C.F.R. §1910.162(b)(5) requires employers to provide a predischarge-employee alarm system to alert employees if a carbon dioxide concen-tration of 4% or greater is released from a fixed extinguishing system in a workplace. What is the most likely reason OSHA enacted this regulation? b. At 14 C.F.R. §121.265, FAA allows carbon dioxide to be used as a fire extinguish-ing agent onboard aircraft, provided that provisions are made to prevent harmful concentrations from entering any personnel compartment. Use Table 5.6 to deter-mine whether adverse health effects are likely to be experienced by a crew member who is confined to a compartment in which the air contains 8, carbon dioxide. c. The chemical formula of methyl bromide is CH3Br. Why does methyl bromide per-form effectively as a fire extinguishing agent? d. A potential risk of inhalation toxicity may occur to individuals that…
- In an Orsat analysis the % CO2 of the product of the combustion is 20% . If percent excess air is 30% . find the maximum percentage of CO2 attainable.What does entryopy do in catalysis by proximity effects..?UCI Chemistry researchers, Prof. F. Sherwood Rowland and Dr. Mario Molina werefirst to discovered in 1973 that chlorofluorocarbons (CFCs) were depleting the Earth’sozone layer when released into the atmosphere. Once they reach the stratosphere, Clis released from the CFCs molecules by interaction with UV light. Free Cl atoms areable to react with ozone in a catalytic cycle that converts O3into the more stable O2.It is estimated that a single Cl atom is able to react with∼100000 O3molecules.Although CFCs production was banned in 1996, there are still a substantial numberof motor vehicle air conditioners (MVACs) that use CFC-12 (CF2Cl2) as refrigerant.The average CFC-12 emission rate from operating MVACs has been estimated tobe 59.5 mg per hour per vehicle (Zhang et al.Environ. Sci. Technol. Lett.2017).How much chlorine, in kg, is added to the atmosphere in a year due to 100 millionMVACs using CFC-12 as refrigerant?
- One of the many remarkable enzymes in the human bodyis carbonic anhydrase, which catalyzes the interconversionof carbon dioxide and water with bicarbonate ionand protons. If it were not for this enzyme, the body couldnot rid itself rapidly enough of the CO2 accumulated bycell metabolism. The enzyme catalyzes the dehydration(release to air) of up to 107 CO2 molecules per second.Which components of this description correspond to theterms enzyme, substrate, and turnover number?Ksp for Co(OH)2 is 5.92x10^-15For the reaction 5Ce4+ + Mn 2+ + 4H2 O → 5Ce3+ + MnO4- + 8H+ , given E0 (Ce4+ /Ce3+ ) = 1.70V,E0 (MnO4- /Mn2+ ) = 1.507V, calculate ΔG0 for this reaction ?