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->2NH2) 10. What property would be appropriate to measure the reaction rate in the following reaction:...
Model 1 - Potential Energy Diagrams 1) The energy (enthalpy) change of a reaction can be...
Model 1 - Potential Energy Diagrams 1) The energy (enthalpy) change of a reaction can be determined by the following expression: Activated Complex Transition State AH = Energy products - Energy reactants Activation Energy, E Reactants Consider the energy change for the reaction in Model 1 (the graph to the left). Potential Energy (kJ/mol) Energy change (AH) Products a) The energy change shown is (positive/negative). b) This reaction is (endothermic / exothermic). c) These (reactants / transition state) has more...
Question 2 of 10 Which of the following statements concerning the collision theory of reaction rates...
Question 2 of 10 Which of the following statements concerning the collision theory of reaction rates is correct? 1. The activation energy is the difference between the EAHf° (products) and EAHf° (reactants). 2. The activation energy for the forward reaction is the negative of the activation energy for the reverse reaction. 3. The pre-exponential or frequency factor in the Arrhenius equation is a measure of the fraction of reactant molecules having sufficient energy to react. 4. The activation energy of...
48. If the conversion of A to B is slow and B to C is fast, what is the rate equation for this reaction? A) Rate =...
48. If the conversion of A to B is slow and B to C is fast, what is the rate equation for this reaction? A) Rate = K[(CH3CHCI][H20] B) Rate - K[(CH3)2CHCI] C) Rate = K[(CH3)CH] [H0] D) Rate = {[(CH3)2CH] 49. Which of the following statements about a catalyst is true? A) A catalyst accelerates a reaction by changing the amount of reactant and product at equilibrium B) A catalyst accelerates a reaction by lowering the energy of activation...
12.) Which of the following factors influence the rate of a reaction? A) Temperature B) Reactant...
12.) Which of the following factors influence the rate of a reaction? A) Temperature B) Reactant concentration C) A catalyst D) Temperature, reactant concentration, and a catalyst 13.) A fast reaction rate for a chemical reaction is dependent on: A) having a large activation energy B) having a small activation energy C) being exothermic D) being endothermic 14.)) A catalyst is A) a substance that decreases the energy of the products. B) a product in a chemical reaction. c) a...
14) In an exothermic reaction, heat can be considered a A) reactant B) product C) rate...
14) In an exothermic reaction, heat can be considered a A) reactant B) product C) rate D) catalyst E) determinant 15) Any reaction that absorbs 150 kcal of energy can be classified as A) endothermic B) exothermic C) activated D) reduction E) oxidation 16) The is the energy difference between reactants and products in a chemical reaction. A) transition energy B) activation energy C) product energy D) overall energy E) heat of reaction 17) For the reaction of carbon with...
22. The rate law for the chemical reaction shown below has been determined experimentally: Rate =...
22. The rate law for the chemical reaction shown below has been determined experimentally: Rate = k[O3][CI]. What is the overall order of the reaction? 03(g) + Cl(g) → O2(g) + ClO(g) a. 3 b. 5 d. 2 8. The following data were obtained for the hypothetical reaction A+B → products. [A]o (M) 4.0 2.0 4.0 [B]. (M) 6.0 6.0 3.0 Initial Rate (M/s) 1.60 0.80 0.40 What is the overall order of this reaction? a. 3 b. 12 c....
As the temperature of a reaction is increased, the rate of the reaction increases because the...
As the temperature of a reaction is increased, the rate of the reaction increases because the A) reactant molecules collide less frequently and with greater energy per collision B) reactant molecules collide with greater energy per collision C) reactant molecules collide less frequently D) activation energy is lowered E) reactant molecules collide more frequently with less energy per collision
The best description of how a catalyst makes a reaction proceed at a faster rate is...
The best description of how a catalyst makes a reaction proceed at a faster rate is a. A catalyst increases the kinetic energy of the reactant particles. b. A catalyst provides an alternate path for the reaction and effectively lowers the activation energy. c. A catalyst lowers the average energy of the product molecules. d. A catalyst changes the position of equilibrium by shifting the reaction towards the products. e. A catalyst raises height of the energy barrier required for...
14. A catalyst a. Participates in the reaction and b. Dec c. Increases the activation e...
14. A catalyst a. Participates in the reaction and b. Dec c. Increases the activation e d. Binds to the reactants and releases them sequentially the reaction and changes the product release reases the activation energy required for the reaction 15. In an exothermic reaction, if heat is removed from the reaction a. Equilibrium shifts to the right b. Product formation increases c. Increase the value of K d. All the above 16. Initially, a mixture of 0.100 M No,...
c. b. A+B e. a Free Energy d. Progress of the Reaction Given the energy diagram...
c. b. A+B e. a Free Energy d. Progress of the Reaction Given the energy diagram for the reaction of A+B --> C above, what is represented by the arrow marked d.? Select one: O A. Activation energy of the reverse catalyzed reaction o B. Energy difference between the catalyzed and uncatalyzed reactions OC. Activation energy of the reverse uncatalyzed reaction o D. Energy difference between the reactants and products
Model 1 - Potential Energy Diagrams 1) The energy (enthalpy) change of a reaction can be determined by the following expression: Activated Complex Transition State AH = Energy products - Energy reactants Activation Energy, E Reactants Consider the energy change for the reaction in Model 1 (the graph to the left). Potential Energy (kJ/mol) Energy change (AH) Products a) The energy change shown is (positive/negative). b) This reaction is (endothermic / exothermic). c) These (reactants / transition state) has more...
Question 2 of 10 Which of the following statements concerning the collision theory of reaction rates is correct? 1. The activation energy is the difference between the EAHf° (products) and EAHf° (reactants). 2. The activation energy for the forward reaction is the negative of the activation energy for the reverse reaction. 3. The pre-exponential or frequency factor in the Arrhenius equation is a measure of the fraction of reactant molecules having sufficient energy to react. 4. The activation energy of...
48. If the conversion of A to B is slow and B to C is fast, what is the rate equation for this reaction? A) Rate = K[(CH3CHCI][H20] B) Rate - K[(CH3)2CHCI] C) Rate = K[(CH3)CH] [H0] D) Rate = {[(CH3)2CH] 49. Which of the following statements about a catalyst is true? A) A catalyst accelerates a reaction by changing the amount of reactant and product at equilibrium B) A catalyst accelerates a reaction by lowering the energy of activation...
12.) Which of the following factors influence the rate of a reaction? A) Temperature B) Reactant concentration C) A catalyst D) Temperature, reactant concentration, and a catalyst 13.) A fast reaction rate for a chemical reaction is dependent on: A) having a large activation energy B) having a small activation energy C) being exothermic D) being endothermic 14.)) A catalyst is A) a substance that decreases the energy of the products. B) a product in a chemical reaction. c) a...
14) In an exothermic reaction, heat can be considered a A) reactant B) product C) rate D) catalyst E) determinant 15) Any reaction that absorbs 150 kcal of energy can be classified as A) endothermic B) exothermic C) activated D) reduction E) oxidation 16) The is the energy difference between reactants and products in a chemical reaction. A) transition energy B) activation energy C) product energy D) overall energy E) heat of reaction 17) For the reaction of carbon with...
22. The rate law for the chemical reaction shown below has been determined experimentally: Rate = k[O3][CI]. What is the overall order of the reaction? 03(g) + Cl(g) → O2(g) + ClO(g) a. 3 b. 5 d. 2 8. The following data were obtained for the hypothetical reaction A+B → products. [A]o (M) 4.0 2.0 4.0 [B]. (M) 6.0 6.0 3.0 Initial Rate (M/s) 1.60 0.80 0.40 What is the overall order of this reaction? a. 3 b. 12 c....
As the temperature of a reaction is increased, the rate of the reaction increases because the A) reactant molecules collide less frequently and with greater energy per collision B) reactant molecules collide with greater energy per collision C) reactant molecules collide less frequently D) activation energy is lowered E) reactant molecules collide more frequently with less energy per collision
14. A catalyst a. Participates in the reaction and b. Dec c. Increases the activation e d. Binds to the reactants and releases them sequentially the reaction and changes the product release reases the activation energy required for the reaction 15. In an exothermic reaction, if heat is removed from the reaction a. Equilibrium shifts to the right b. Product formation increases c. Increase the value of K d. All the above 16. Initially, a mixture of 0.100 M No,...
c. b. A+B e. a Free Energy d. Progress of the Reaction Given the energy diagram for the reaction of A+B --> C above, what is represented by the arrow marked d.? Select one: O A. Activation energy of the reverse catalyzed reaction o B. Energy difference between the catalyzed and uncatalyzed reactions OC. Activation energy of the reverse uncatalyzed reaction o D. Energy difference between the reactants and products
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