The temperature at which the system is at equilibrium.

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Answer 1

Question

Chapter 19, Problem 8E

(a)

Interpretation Introduction

To determine: The temperature at which the system is at equilibrium.

(b)

Interpretation Introduction

To determine: The temperature range in which the given reaction is spontaneous.

(c)

Interpretation Introduction

To determine: If the enthalpy change of the given reaction is positive or negative.

(d)

Interpretation Introduction

To determine: If the entropy change of the given reaction is positive or negative.

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(a 4 shows scanning electron microscope (SEM) images of extruded actions of packing bed for two capillary columns of different diameters, al 750 (bottom image) and b) 30-μm-i.d. Both columns are packed with the same stationary phase, spherical particles with 1-um diameter. A) When the columns were prepared, the figure shows that the column with the larger diameter has more packing irregularities. Explain this observation. B) Predict what affect this should have on band broadening and discuss your prediction using the van Deemter terms. C) Does this figure support your explanations in application question 33? Explain why or why not and make any changes in your answers in light of this figure. Figure 4 SEM images of sections of packed columns for a) 750 and b) 30-um-i.d. capillary columns.³

fcrip = ↓ bandwidth Il temp 32. What impact (increase, decrease, or no change) does each of the following conditions have on the individual components of the van Deemter equation and consequently, band broadening? Increase temperature Longer column Using a gas mobile phase instead of liquid Smaller particle stationary phase Multiple Paths Diffusion Mass Transfer

34. Figure 3 shows Van Deemter plots for a solute molecule using different column inner diameters (i.d.). A) Predict whether decreasing the column inner diameters increase or decrease bandwidth. B) Predict which van Deemter equation coefficient (A, B, or C) has the greatest effect on increasing or decreasing bandwidth as a function of i.d. and justify your answer. Figure 3 Van Deemter plots for hydroquinone using different column inner diameters (i.d. in μm). The data was obtained from liquid chromatography experiments using fused-silica capillary columns packed with 1.0-μm particles. 35 20 H(um) 큰 20 15 90 0+ 1500 100 75 550 01 02 594 05 μ(cm/sec) 30 15 10

Answer 2

Question

Chapter 19, Problem 8E

(a)

Interpretation Introduction

To determine: The temperature at which the system is at equilibrium.

(b)

Interpretation Introduction

To determine: The temperature range in which the given reaction is spontaneous.

(c)

Interpretation Introduction

To determine: If the enthalpy change of the given reaction is positive or negative.

(d)

Interpretation Introduction

To determine: If the entropy change of the given reaction is positive or negative.

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Answer 3

Question

Chapter 19, Problem 8E

(a)

Interpretation Introduction

To determine: The temperature at which the system is at equilibrium.

(b)

Interpretation Introduction

To determine: The temperature range in which the given reaction is spontaneous.

(c)

Interpretation Introduction

To determine: If the enthalpy change of the given reaction is positive or negative.

(d)

Interpretation Introduction

To determine: If the entropy change of the given reaction is positive or negative.

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Answer 4

Question

Chapter 19, Problem 8E

(a)

Interpretation Introduction

To determine: The temperature at which the system is at equilibrium.

(b)

Interpretation Introduction

To determine: The temperature range in which the given reaction is spontaneous.

(c)

Interpretation Introduction

To determine: If the enthalpy change of the given reaction is positive or negative.

(d)

Interpretation Introduction

To determine: If the entropy change of the given reaction is positive or negative.

Expert Solution & Answer

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Answer 5

Chapter 19, Problem 8E

(a)

Interpretation Introduction

To determine: The temperature at which the system is at equilibrium.

(b)

Interpretation Introduction

To determine: The temperature range in which the given reaction is spontaneous.

(c)

Interpretation Introduction

To determine: If the enthalpy change of the given reaction is positive or negative.

(d)

Interpretation Introduction

To determine: If the entropy change of the given reaction is positive or negative.

Answer 6

Chapter 19, Problem 8E

(a)

Interpretation Introduction

To determine: The temperature at which the system is at equilibrium.

Answer 7

Chapter 19, Problem 8E

(a)

Interpretation Introduction

To determine: The temperature at which the system is at equilibrium.

Answer 8

(b)

Interpretation Introduction

To determine: The temperature range in which the given reaction is spontaneous.

Answer 9

(b)

Interpretation Introduction

To determine: The temperature range in which the given reaction is spontaneous.

Answer 10

(c)

Interpretation Introduction

To determine: If the enthalpy change of the given reaction is positive or negative.

Answer 11

(c)

Interpretation Introduction

To determine: If the enthalpy change of the given reaction is positive or negative.

Answer 12

(d)

Interpretation Introduction

To determine: If the entropy change of the given reaction is positive or negative.

Answer 13

(d)

Interpretation Introduction

To determine: If the entropy change of the given reaction is positive or negative.

Answer 14

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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 temperature at which the system is at equilibrium.

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To determine: The temperature at which the system is at equilibrium.

To determine: The temperature range in which the given reaction is spontaneous.

To determine: If the enthalpy change of the given reaction is positive or negative.

To determine: If the entropy change of the given reaction is positive or negative.

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Chapter 19 Solutions