A gas has greater entropy than a solid because in a gaseous state, the molecules are free to move in any direction while in solid state, the movement of molecules are restricted.

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Answer 1

Question

Chapter 18, Problem 1SAQ

Interpretation Introduction

Introduction: A gas has greater entropy than a solid because in a gaseous state, the molecules are free to move in any direction while in solid state, the movement of molecules are restricted.

Expert Solution & Answer

Answer to Problem 1SAQ

Solution:

The reaction given in option (a) will have a positive ΔSsys.

Explanation of Solution

The phase transition is from solid to gas during the chemical reaction, so entropy increases and ΔSsys will be positive.The number of moles of gas decrease during a chemical reaction; 12 mol of gas have decreased to 6 moles, so the entropy decreases and ΔSsys will be negative.

The number of moles of gas decrease during a chemical reaction; 2 mol of gas have decreased to 1 mol, so the entropy decreases and ΔSsys will be negative.

The number of moles of gas decrease during a chemical reaction; 3 mol of gas have decreased to 1 mol, so the entropy decreases and ΔSsys will be negative

Conclusion

Thus, the reaction given in option (a) will have a positive ΔSsys and the correct answer is option (a).

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b) Certain cyclic compounds are known to be conformationally similar to carbohydrates, although they are not themselves carbohydrates. One example is Compound C shown below, which could be imagined as adopting four possible conformations. In reality, however, only one of these is particularly stable. Circle the conformation you expect to be the most stable, and provide an explanation to justify your choice. For your explanation to be both convincing and correct, it must contain not only words, but also "cartoon" orbital drawings contrasting the four structures. Compound C Possible conformations (circle one): Дет

Lab Data The distance entered is out of the expected range. Check your calculations and conversion factors. Verify your distance. Will the gas cloud be closer to the cotton ball with HCI or NH3? Did you report your data to the correct number of significant figures? - X Experimental Set-up HCI-NH3 NH3-HCI Longer Tube Time elapsed (min) 5 (exact) 5 (exact) Distance between cotton balls (cm) 24.30 24.40 Distance to cloud (cm) 9.70 14.16 Distance traveled by HCI (cm) 9.70 9.80 Distance traveled by NH3 (cm) 14.60 14.50 Diffusion rate of HCI (cm/hr) 116 118 Diffusion rate of NH3 (cm/hr) 175.2 175.2 How to measure distance and calculate rate

For the titration of a divalent metal ion (M2+) with EDTA, the stoichiometry of the reaction is typically: 1:1 (one mole of EDTA per mole of metal ion) 2:1 (two moles of EDTA per mole of metal ion) 1:2 (one mole of EDTA per two moles of metal ion) None of the above

Answer 2

Question

Chapter 18, Problem 1SAQ

Interpretation Introduction

Introduction: A gas has greater entropy than a solid because in a gaseous state, the molecules are free to move in any direction while in solid state, the movement of molecules are restricted.

Expert Solution & Answer

Answer to Problem 1SAQ

Solution:

The reaction given in option (a) will have a positive ΔSsys.

Explanation of Solution

The phase transition is from solid to gas during the chemical reaction, so entropy increases and ΔSsys will be positive.The number of moles of gas decrease during a chemical reaction; 12 mol of gas have decreased to 6 moles, so the entropy decreases and ΔSsys will be negative.

The number of moles of gas decrease during a chemical reaction; 2 mol of gas have decreased to 1 mol, so the entropy decreases and ΔSsys will be negative.

The number of moles of gas decrease during a chemical reaction; 3 mol of gas have decreased to 1 mol, so the entropy decreases and ΔSsys will be negative

Conclusion

Thus, the reaction given in option (a) will have a positive ΔSsys and the correct answer is option (a).

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Answer 3

Question

Chapter 18, Problem 1SAQ

Interpretation Introduction

Introduction: A gas has greater entropy than a solid because in a gaseous state, the molecules are free to move in any direction while in solid state, the movement of molecules are restricted.

Expert Solution & Answer

Answer to Problem 1SAQ

Solution:

The reaction given in option (a) will have a positive ΔSsys.

Explanation of Solution

The phase transition is from solid to gas during the chemical reaction, so entropy increases and ΔSsys will be positive.The number of moles of gas decrease during a chemical reaction; 12 mol of gas have decreased to 6 moles, so the entropy decreases and ΔSsys will be negative.

The number of moles of gas decrease during a chemical reaction; 2 mol of gas have decreased to 1 mol, so the entropy decreases and ΔSsys will be negative.

The number of moles of gas decrease during a chemical reaction; 3 mol of gas have decreased to 1 mol, so the entropy decreases and ΔSsys will be negative

Conclusion

Thus, the reaction given in option (a) will have a positive ΔSsys and the correct answer is option (a).

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Answer 4

Question

Chapter 18, Problem 1SAQ

Interpretation Introduction

Introduction: A gas has greater entropy than a solid because in a gaseous state, the molecules are free to move in any direction while in solid state, the movement of molecules are restricted.

Expert Solution & Answer

Answer to Problem 1SAQ

Solution:

The reaction given in option (a) will have a positive ΔSsys.

Explanation of Solution

The phase transition is from solid to gas during the chemical reaction, so entropy increases and ΔSsys will be positive.The number of moles of gas decrease during a chemical reaction; 12 mol of gas have decreased to 6 moles, so the entropy decreases and ΔSsys will be negative.

The number of moles of gas decrease during a chemical reaction; 2 mol of gas have decreased to 1 mol, so the entropy decreases and ΔSsys will be negative.

The number of moles of gas decrease during a chemical reaction; 3 mol of gas have decreased to 1 mol, so the entropy decreases and ΔSsys will be negative

Conclusion

Thus, the reaction given in option (a) will have a positive ΔSsys and the correct answer is option (a).

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Answer 5

Chapter 18, Problem 1SAQ

Interpretation Introduction

Introduction: A gas has greater entropy than a solid because in a gaseous state, the molecules are free to move in any direction while in solid state, the movement of molecules are restricted.

Expert Solution & Answer

Answer to Problem 1SAQ

Solution:

The reaction given in option (a) will have a positive ΔSsys.

Explanation of Solution

The phase transition is from solid to gas during the chemical reaction, so entropy increases and ΔSsys will be positive.The number of moles of gas decrease during a chemical reaction; 12 mol of gas have decreased to 6 moles, so the entropy decreases and ΔSsys will be negative.

The number of moles of gas decrease during a chemical reaction; 2 mol of gas have decreased to 1 mol, so the entropy decreases and ΔSsys will be negative.

The number of moles of gas decrease during a chemical reaction; 3 mol of gas have decreased to 1 mol, so the entropy decreases and ΔSsys will be negative

Conclusion

Thus, the reaction given in option (a) will have a positive ΔSsys and the correct answer is option (a).

Answer 6

Chapter 18, Problem 1SAQ

Interpretation Introduction

Introduction: A gas has greater entropy than a solid because in a gaseous state, the molecules are free to move in any direction while in solid state, the movement of molecules are restricted.

Expert Solution & Answer

Answer to Problem 1SAQ

Solution:

The reaction given in option (a) will have a positive ΔSsys.

Explanation of Solution

The phase transition is from solid to gas during the chemical reaction, so entropy increases and ΔSsys will be positive.The number of moles of gas decrease during a chemical reaction; 12 mol of gas have decreased to 6 moles, so the entropy decreases and ΔSsys will be negative.

The number of moles of gas decrease during a chemical reaction; 2 mol of gas have decreased to 1 mol, so the entropy decreases and ΔSsys will be negative.

The number of moles of gas decrease during a chemical reaction; 3 mol of gas have decreased to 1 mol, so the entropy decreases and ΔSsys will be negative

Conclusion

Thus, the reaction given in option (a) will have a positive ΔSsys and the correct answer is option (a).

Answer 7

Chapter 18, Problem 1SAQ

Interpretation Introduction

Introduction: A gas has greater entropy than a solid because in a gaseous state, the molecules are free to move in any direction while in solid state, the movement of molecules are restricted.

Answer 8

Expert Solution & Answer

Answer to Problem 1SAQ

Solution:

The reaction given in option (a) will have a positive ΔSsys.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

The phase transition is from solid to gas during the chemical reaction, so entropy increases and ΔSsys will be positive.The number of moles of gas decrease during a chemical reaction; 12 mol of gas have decreased to 6 moles, so the entropy decreases and ΔSsys will be negative.

The number of moles of gas decrease during a chemical reaction; 2 mol of gas have decreased to 1 mol, so the entropy decreases and ΔSsys will be negative.

The number of moles of gas decrease during a chemical reaction; 3 mol of gas have decreased to 1 mol, so the entropy decreases and ΔSsys will be negative