11. If reaction A has an activation energy of 250 kJ and reaction B has an activation energy of 100 kJ, which of the following statements must be correct? A. If reaction A is exothermic and reaction B is endothermic then reaction A is favored kinetically. B. At the same temperature the rate of reaction B is greater than the rate of reaction A. C. The energy of reaction A must be greater than the energy of reaction B. D. The energy of reaction B must be greater than the energy of reaction A. E. The rate of reaction A at 25 °C equals the rate of reaction B at 100 °C.

Q: a.) Would you expect this reaction to take place in a single step? Why or why not? b.) This reaction…

A: The question is based on the concept of chemical kinetics. we have to observe the reaction and…

Q: 1. The rate of reaction depends upon (a) the concentration and nature of the reactants (b) the…

A: Here we have to predict the true statement regarding the rate of reaction and unit of rate constant…

Q: 76 Consider Reactions A, B, and C with activation energies, E, of: 35; 45; and 55 kJ/mol,…

A: 76 ) Arrhenius equation is given by,     k = A.e-Ea/RT       k  = rate constant    A =  Arrhenius…

Q: Consider these two gas-phase reactions: a. AA(g) +BB(g) → 2AB(g) b. AB(g)+ CD(g) AC(g) + BD(g) If…

A: The reactions given are, Given: Activation energy of the reactions are same.

Q: Consider this two-step mechanism for the reaction at a particular temperature: NO2( g) + Cl2(g)…

A: Given reaction is two step reaction,  Step-1: No2(g) +Cl2 (g) --------> ClNO2(g) + Cl (g)  k1=…

Q: This question has multiple parts. Work all the parts to get the most points. For the decomposition…

A: In exothermic reactions energy of products is less than that of energy of reactants. That means…

Q: Draw and label an energy profile diagram for reaction SO.Cl(g)→ SO(g) + Cl(g) given that the…

A: The minimum amount of energy required by the reactant molecules to convert into the products is…

Q: 11. For the reaction C12(g) +2 NO(g) → 2 NOC1 (g) the activation energy is 18.9 kJ/mol. For the…

A: We are authorised to solve only one question at a time. Please post rest of the questions…

Q: → 2H₂O(g) is exothermic, which of the → 2H₂(g) + O₂ (g)? Given that the reaction 2H₂(g) + O2(g)…

A: The energy difference between the products and reactants is known as the energy change of a…

Q: 1. a) Write the reaction profile (reaction coordinate diagram) for an endothermic reaction that…

A: When in a reaction reactants are converted into products, energy change takes place. Representation…

Q: For the process, A = B + C, the activation energy and enthalpy value are 150 kJ and 120 kJ,…

A: Activation energy is the “extra energy required by the reactant species to reach the activated…

Q: Chlorofluorocarbons (CFC’s) were previously used as refrigerants and as propellants in spray cans.…

A: Hello. Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: 11. The role of catalyst is to Mark only one oval. Increase the activation energy Raise the…

A: A catalyst is a substance which does not take participate into reaction but enhances the rate of…

Q: The graph below is a potential energy diagram for the hypothetical reaction: + B → C + D 100 90 80…

A: ->∆H = H(product)-H(reactant) If ∆H>0 => Endothermic If ∆H<0 => Exothermic ->An…

Q: Here is an energy diagram for the reaction: 400 C + D 300 energy 200 (k]/mol) 100 A + B reaction…

A: Heat of reaction is the energy difference of the reactant and the product. if your heat of the…

Q: Which of the following statements below is true concerning the activation energy for a reaction? O…

A: The statement which is true about the activation energy for the reaction i given below.

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: 4. Examine the reaction energy diagram below for the generic reaction C →D. a) is the reaction…

A: The reaction given is  C -----> D

Q: N2 (g) + 2 O2 (g) N2O4 (g) The above reaction has an activation energy of 495 kJ and a change in…

A:

Q: The gas-phase reaction X(g) +Y(g) -> XY(g) has an overall energy change of +45 kJ. The activation…

A:

Q: 2. a) How can the activation energy of a reaction be determined from the graph of In k vs 1/T? b) In…

A: The relationship between rate constant and activation energy is given by  where K = rate constant…

Q: 39.For a given reaction, the activation energy is 63.9 kJ/mol. If the reaction rate constant is 4.1…

A:

Q: This reaction has an activation energy of zero in the gas phase:CH3 + CH3------------->C2H6a.…

A: Given: Activation energy of the reaction=0

Q: (a) Graph the relationship between k(yaxis) and T(xaxis).(b) Graph the relationship between ln…

A: a.

Q: 1) Students are interested in quickly completing their lab experiments before going to lunch. What…

A:

Q: Draw a reaction profile (the graph of energy as a function of time as a reaction progresses) for the…

A:

Q: A reversible reaction that occurs in a single step has AH= -26.2 kJ/mol and E = 25.2 kJ/mol. What is…

A: The relationship between the enthalpy change ∆H and activation energy is: ∆H=Eaf-Eab·······(1) Here,…

Q: Which of the following statements is correct? a) For an endothermic reaction, the activation energy…

A: Which of the following statement is true:

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: 8 (a) What are the units usually used to express the rates of reactions occurring in solution? (b)…

A: The speed at which chemical reaction occurs is known as rate of chemical reaction.

Q: Draw and label an energy profile diagram for reaction SO.Cl.(g)→ SO.(g) + Cl.(g) given that the…

A: The reaction given is, => SO2Cl2 (g) ------> SO2 (g) + Cl2 (g) Given : Activation energy of…

Q: 9. An increase in temperature increases the reaction rate. What is the best reason to explain this…

A: Applying statement of kinetic theory Ek= 3/2kT

Q: For the formation of 1 mol of nitrosyl chloride at a given temperature, H = –44 kJ. NO(g) + ½…

A: Given:  Activation energy of reaction (Eaf = 59KJ/mole)  Enthalpy of reaction (∆H) = -44 KJ/mole

Q: f a temperature increase from 20.0 °C to 35.0 °C triples the rate of a reaction, what is the value…

A: Given, Rate of reaction becomes tripled k1 = k k2 = 3k T1 = 20 °C=293 K T2 = 35 °C=308 K Ea=?

Q: a. 10. A catalyst accelerates a reaction because A. it removes energy from the reactants. B. it…

A: The catalyst is a chemical substance that increases the rate of the reaction without participating…

Q: 16. Which is not a correct statement about a catalyst? A) It changes the reaction mechanism. B) It…

A:

Q: 6. Imaging a reaction of this form: 20F, → 2F2 + O2 Transition state: (a) Add the reactants and…

A: The energy curve of the decomposition reaction of OF2 is given.OF2 decomposes to give F2 and O2.

Q: Which of the following changes always leads to an increase inthe rate constant for a reaction:(i)…

A: The Arrhenius equation to calculate the rate constant (k) is shown below.

Q: i dont know how to do d-g

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Q: A2(g) + B2(g) →2 AB(g) The activation energy (Ea) in the forward direction is +143 kJ. The…

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Q: 5. The collision theory of reaction rates states that the rate of a reaction depends on the number…

A:

Q: 7.For a chemical reaction, the activation energy for the forward reaction is +181 kJ and the…

A: Given: Activation energy for forward reaction, Ef = +181 kJ Activation energy for backward reaction,…

Q: 17. The diagram below shows the energy profile of a reaction, A+B_making C+D Potential Energy A +B C…

A: Rate constant increases exponentially when activation energy decreases.

Q: One mechanism for the destruction of ozone in the upper atmosphere is Оз (9) + NO(9) NO,(9) + O2(9)…

A:

Q: The rate law of the overall reaction is k[A][B]0. Which of the following will not increase the rate…

A: 10. Option B  is correct as the reaction is of 0 order with respect to reactant B so increasing…

Q: Which of the following statements are true? I. Activation energy of a reaction is smaller at higher…

A: Activation energy  It is defined as the minimum energy required by the reactants so that they can…

Q: 1a. Does this graph represent an exothermic reaction or an endothermic reaction? Explain how you…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: The reaction X + X₃ → 2 X₂ is shown to have an activation energy of 77 kJ/mol while the enthalpy of…

A:

Q: 9. What effect does a catalyst have on a reaction? A. It changes the AH of a reaction. B. It…

A: Catalyst is the substance that form reactant-Catalyst complex and follow a different  pathway from…

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