The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous at all temperatures”.

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Answer 1

Question

Chapter 19.5, Problem 19.8.1PE

(a)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous at all temperatures”.

(b)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is non spontaneous at all temperatures”.

(c)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous only at higher temperatures”.

(d)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous only at lower temperatures”.

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Q1: Answer the questions for the reaction below: ..!! Br OH a) Predict the product(s) of the reaction. b) Is the substrate optically active? Are the product(s) optically active as a mix? c) Draw the curved arrow mechanism for the reaction. d) What happens to the SN1 reaction rate in each of these instances: 1. Change the substrate to Br "CI 2. Change the substrate to 3. Change the solvent from 100% CH3CH2OH to 10% CH3CH2OH + 90% DMF 4. Increase the substrate concentration by 3-fold.

Experiment 27 hates & Mechanisms of Reations Method I visual Clock Reaction A. Concentration effects on reaction Rates Iodine Run [I] mol/L [S₂082] | Time mo/L (SCC) 0.04 54.7 Log 1/ Time Temp Log [ ] 13,20] (time) / [I] 199 20.06 23.0 30.04 0.04 0.04 80.0 22.8 45 40.02 0.04 79.0 21.6 50.08 0.03 51.0 22.4 60-080-02 95.0 23.4 7 0.08 0-01 1970 23.4 8 0.08 0.04 16.1 22.6

(15 pts) Consider the molecule B2H6. Generate a molecular orbital diagram but this time using a different approach that draws on your knowledge and ability to put concepts together. First use VSEPR or some other method to make sure you know the ground state structure of the molecule. Next, generate an MO diagram for BH2. Sketch the highest occupied and lowest unoccupied MOs of the BH2 fragment. These are called frontier orbitals. Now use these frontier orbitals as your basis set for producing LGO's for B2H6. Since the BH2 frontier orbitals become the LGOS, you will have to think about what is in the middle of the molecule and treat its basis as well. Do you arrive at the same qualitative MO diagram as is discussed in the book? Sketch the new highest occupied and lowest unoccupied MOs for the molecule (B2H6).

Answer 2

Question

Chapter 19.5, Problem 19.8.1PE

(a)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous at all temperatures”.

(b)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is non spontaneous at all temperatures”.

(c)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous only at higher temperatures”.

(d)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous only at lower temperatures”.

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Answer 3

Question

Chapter 19.5, Problem 19.8.1PE

(a)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous at all temperatures”.

(b)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is non spontaneous at all temperatures”.

(c)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous only at higher temperatures”.

(d)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous only at lower temperatures”.

Expert Solution & Answer

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Answer 4

Question

Chapter 19.5, Problem 19.8.1PE

(a)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous at all temperatures”.

(b)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is non spontaneous at all temperatures”.

(c)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous only at higher temperatures”.

(d)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous only at lower temperatures”.

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Answer 5

Chapter 19.5, Problem 19.8.1PE

(a)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous at all temperatures”.

(b)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is non spontaneous at all temperatures”.

(c)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous only at higher temperatures”.

(d)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous only at lower temperatures”.

Answer 6

Chapter 19.5, Problem 19.8.1PE

(a)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous at all temperatures”.

Answer 7

Chapter 19.5, Problem 19.8.1PE

(a)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous at all temperatures”.

Answer 8

(b)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is non spontaneous at all temperatures”.

Answer 9

(b)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is non spontaneous at all temperatures”.

Answer 10

(c)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous only at higher temperatures”.

Answer 11

(c)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous only at higher temperatures”.

Answer 12

(d)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous only at lower temperatures”.

Answer 13

(d)

Interpretation Introduction

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous only at lower temperatures”.

Answer 14

Expert Solution & Answer

Answer 15

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Answer 16

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Answer 17

Ch. 19.1 - The process of iron being oxidized to make iron...Ch. 19.1 - At 1 atm pressure, CO2(s) sublimes at 78oC. Is...Ch. 19.2 - Prob. 19.2.1PE Ch. 19.2 - Prob. 19.2.2PE Ch. 19.3 - Prob. 19.3.1PE Ch. 19.3 - Prob. 19.3.2PE Ch. 19.3 - Prob. 19.4.1PE Ch. 19.3 - Prob. 19.4.2PE Ch. 19.4 - Prob. 19.5.1PE Ch. 19.4 - Using the standard molar entropies in Appendix C,...

The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous at all temperatures”.

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To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous at all temperatures”.

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is non spontaneous at all temperatures”.

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous only at higher temperatures”.

To determine: The authenticity of the given statement, “The reaction which is exothermic and has positive entropy change is spontaneous only at lower temperatures”.

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Chapter 19 Solutions