Homework Answers
41. Correct option is : C) Reactive intermediate
42. Correct option is : B) Each step is characterized by its own value of ∆H° and Ea.
43. Correct option is : (A) A graph in which energy of product is greater than reactant.
44. Correct option is : (C) 2 ( 2 energy Maxima)
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41. What is the name given to the reaction species that lies at an energy minimum between steps on a reaction energ...
2. Draw a labeled reaction-energy diagram (graph of potential energy versus reaction coordinate) for a three-step...
2. Draw a labeled reaction-energy diagram (graph of potential energy versus reaction coordinate) for a three-step overall exothermic reaction with the A. first step being the rate-determining step B. third step being the rate-determining step Label each graph with the following: reactants (r), transition states (ts.), intermediates (int.), products (p). activation energies (Ea), and overall standard heat of reaction (AH). (Note: Each subscript, x, needs to be a number that refers to the appropriate primary mechanistic step. For example, Ea,...
4. Consider the reaction energy diagram below. Consider the "potential energy" to be equal to enthalpy....
4. Consider the reaction energy diagram below. Consider the "potential energy" to be equal to enthalpy. Potential energy Reaction progress First, indicate on the diagram the activation energy, transition state, and the change of enthalpy for every step of this step-wise process, as well as the change in enthalpy for the overall reaction. Then, answer the following questions: (i) How many elementary steps are there in the mechanism of this reaction? (ii) Which of these steps is the rate-determining step?...
SCHE 231 Chapter 6, Worksheet 1 Energy Diagrams 1. Why might it be important to understand...
SCHE 231 Chapter 6, Worksheet 1 Energy Diagrams 1. Why might it be important to understand the energy associated with a chemical reaction? What is this energy associated with? 2. Enthalpy What is Enthalpy (AH)? When is ΔΗ Positive? when is ΔΗ negative? In the diagram below, label which reaction is exothermic and which is endothermic Enthalpy 04) Enthalpy Sarting Products materials AN Starting materials Products Reaction coordinate Reaction coordnate 3. Entropy What is Entropy (AS) What contributes to entropy?...
Potential energy Reaction progress First, indicate on the diagram the activation energy, transition state, and the...
Potential energy Reaction progress First, indicate on the diagram the activation energy, transition state, and the change of enthalpy for every step of this step-wise process, as well as the change in enthalpy for the overall reaction. Then, answer the following questions: (i) How many elementary steps are there in the mechanism of this reaction? (ii) Which of these steps is the rate-determining step? (iii) How many of the individual steps are exothermic? (iv) Is the overall reaction endothermic or...
Accopts electns LElecb phile) -Benane pit rd plckoab & D) FeBr3 8) How many transitia states...
Accopts electns LElecb phile) -Benane pit rd plckoab & D) FeBr3 8) How many transitia states are present in the following reaction diagram? P=X 4 Sst) T E FReadton Coordinate- D) B) 3 C)5 A)4 E) 1 9) What is the activation energy for the reaction A- B in the following diagram? Aaivation Eneray f En Ic A Sno Reaction Coordinate olald A) A B)B C) C E) E 10) Which of the following correctly describes intermediates and/or transition A)...
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 24 of 30 > A certain reaction has an enthalpy of AH = 34 kJ...
Question 24 of 30 > A certain reaction has an enthalpy of AH = 34 kJ and an activation energy of Ea = 66 kJ. What is the activation energy of the reverse reaction? Ea(reverse) = kJ Question 23 of 30 Label the energy diagram for a two-step reaction. A R. + HX Energy RX + H RH + X Reaction coordinate Answer Bank non-limiting transition state rate-limiting transition state products intermediates activation energy starting materials enthalpy change
What are the names of land 2, respectively in the energy diagram? 2. energy reaction coordinate...
What are the names of land 2, respectively in the energy diagram? 2. energy reaction coordinate Select one: Transition state l and reactant Reactants and activation energy Activation energy and intermediate Reactant and transition state 1 Reactant and intermediate What is the major organic product of the following reaction?
Homework Saved Label the following reaction coordinate diagram Activation Energy poversa) <0 A Enthalpy of Reaction...
Homework Saved Label the following reaction coordinate diagram Activation Energy poversa) <0 A Enthalpy of Reaction Product(s) 0 Reaction Coordinate Activation Energy (forward) Transition State AHn Reactant(s) Energy Reset Zoom < Prev 19 of 19 Next D
Which is not true of the energy diagram for an SN2 reaction? A) It includes local...
Which is not true of the energy diagram for an SN2 reaction? A) It includes local energy minima between transition states. B) It includes intermediates that are higher in energy than reactants or products. C) The rate determining step involves the substrate only. D) It includes two transition states. E) All of the above are untrue. Please explain which is the correct answer?
2. Draw a labeled reaction-energy diagram (graph of potential energy versus reaction coordinate) for a three-step overall exothermic reaction with the A. first step being the rate-determining step B. third step being the rate-determining step Label each graph with the following: reactants (r), transition states (ts.), intermediates (int.), products (p). activation energies (Ea), and overall standard heat of reaction (AH). (Note: Each subscript, x, needs to be a number that refers to the appropriate primary mechanistic step. For example, Ea,...
4. Consider the reaction energy diagram below. Consider the "potential energy" to be equal to enthalpy. Potential energy Reaction progress First, indicate on the diagram the activation energy, transition state, and the change of enthalpy for every step of this step-wise process, as well as the change in enthalpy for the overall reaction. Then, answer the following questions: (i) How many elementary steps are there in the mechanism of this reaction? (ii) Which of these steps is the rate-determining step?...
SCHE 231 Chapter 6, Worksheet 1 Energy Diagrams 1. Why might it be important to understand the energy associated with a chemical reaction? What is this energy associated with? 2. Enthalpy What is Enthalpy (AH)? When is ΔΗ Positive? when is ΔΗ negative? In the diagram below, label which reaction is exothermic and which is endothermic Enthalpy 04) Enthalpy Sarting Products materials AN Starting materials Products Reaction coordinate Reaction coordnate 3. Entropy What is Entropy (AS) What contributes to entropy?...
Potential energy Reaction progress First, indicate on the diagram the activation energy, transition state, and the change of enthalpy for every step of this step-wise process, as well as the change in enthalpy for the overall reaction. Then, answer the following questions: (i) How many elementary steps are there in the mechanism of this reaction? (ii) Which of these steps is the rate-determining step? (iii) How many of the individual steps are exothermic? (iv) Is the overall reaction endothermic or...
Accopts electns LElecb phile) -Benane pit rd plckoab & D) FeBr3 8) How many transitia states are present in the following reaction diagram? P=X 4 Sst) T E FReadton Coordinate- D) B) 3 C)5 A)4 E) 1 9) What is the activation energy for the reaction A- B in the following diagram? Aaivation Eneray f En Ic A Sno Reaction Coordinate olald A) A B)B C) C E) E 10) Which of the following correctly describes intermediates and/or transition A)...
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 24 of 30 > A certain reaction has an enthalpy of AH = 34 kJ and an activation energy of Ea = 66 kJ. What is the activation energy of the reverse reaction? Ea(reverse) = kJ Question 23 of 30 Label the energy diagram for a two-step reaction. A R. + HX Energy RX + H RH + X Reaction coordinate Answer Bank non-limiting transition state rate-limiting transition state products intermediates activation energy starting materials enthalpy change
What are the names of land 2, respectively in the energy diagram? 2. energy reaction coordinate Select one: Transition state l and reactant Reactants and activation energy Activation energy and intermediate Reactant and transition state 1 Reactant and intermediate What is the major organic product of the following reaction?
Homework Saved Label the following reaction coordinate diagram Activation Energy poversa) <0 A Enthalpy of Reaction Product(s) 0 Reaction Coordinate Activation Energy (forward) Transition State AHn Reactant(s) Energy Reset Zoom < Prev 19 of 19 Next D
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