Whether the given reaction is exothermic or endothermic should be determined. Concept Introduction : The reaction which requires energy for the conversion of reactant to product is called as endothermic reaction whereas the reaction that releases some amount energy during the conversion of reactant to product is called as exothermic reaction.

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Answer 1

Question

Chapter 9, Problem 79CP

(a)

Interpretation Introduction

Interpretation: Whether the given reaction is exothermic or endothermic should be determined.

Concept Introduction: The reaction which requires energy for the conversion of reactant to product is called as endothermic reaction whereas the reaction that releases some amount energy during the conversion of reactant to product is called as exothermic reaction.

(b)

Interpretation Introduction

Interpretation: The amount of energy in kilojoules required when 1.5 mol of SO₃ reacts should be determined.

Concept Introduction: The reaction which requires energy for the conversion of reactant to product is called as endothermic reaction whereas the reaction that releases some amount energy during the conversion of reactant to product is called as exothermic reaction.

(c)

Interpretation Introduction

Interpretation: The amount of energy in kilojoules required when 150 g of O₂ is formed should be determined.

Concept Introduction: The reaction which requires energy for the conversion of reactant to product is called as endothermic reaction whereas the reaction that releases some amount energy during the conversion of reactant to product is called as exothermic reaction.

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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 9, Problem 79CP

(a)

Interpretation Introduction

Interpretation: Whether the given reaction is exothermic or endothermic should be determined.

Concept Introduction: The reaction which requires energy for the conversion of reactant to product is called as endothermic reaction whereas the reaction that releases some amount energy during the conversion of reactant to product is called as exothermic reaction.

(b)

Interpretation Introduction

Interpretation: The amount of energy in kilojoules required when 1.5 mol of SO₃ reacts should be determined.

Concept Introduction: The reaction which requires energy for the conversion of reactant to product is called as endothermic reaction whereas the reaction that releases some amount energy during the conversion of reactant to product is called as exothermic reaction.

(c)

Interpretation Introduction

Interpretation: The amount of energy in kilojoules required when 150 g of O₂ is formed should be determined.

Concept Introduction: The reaction which requires energy for the conversion of reactant to product is called as endothermic reaction whereas the reaction that releases some amount energy during the conversion of reactant to product is called as exothermic reaction.

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Answer 3

Question

Chapter 9, Problem 79CP

(a)

Interpretation Introduction

Interpretation: Whether the given reaction is exothermic or endothermic should be determined.

Concept Introduction: The reaction which requires energy for the conversion of reactant to product is called as endothermic reaction whereas the reaction that releases some amount energy during the conversion of reactant to product is called as exothermic reaction.

(b)

Interpretation Introduction

Interpretation: The amount of energy in kilojoules required when 1.5 mol of SO₃ reacts should be determined.

Concept Introduction: The reaction which requires energy for the conversion of reactant to product is called as endothermic reaction whereas the reaction that releases some amount energy during the conversion of reactant to product is called as exothermic reaction.

(c)

Interpretation Introduction

Interpretation: The amount of energy in kilojoules required when 150 g of O₂ is formed should be determined.

Concept Introduction: The reaction which requires energy for the conversion of reactant to product is called as endothermic reaction whereas the reaction that releases some amount energy during the conversion of reactant to product is called as exothermic reaction.

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Answer 4

Question

Chapter 9, Problem 79CP

(a)

Interpretation Introduction

Interpretation: Whether the given reaction is exothermic or endothermic should be determined.

Concept Introduction: The reaction which requires energy for the conversion of reactant to product is called as endothermic reaction whereas the reaction that releases some amount energy during the conversion of reactant to product is called as exothermic reaction.

(b)

Interpretation Introduction

Interpretation: The amount of energy in kilojoules required when 1.5 mol of SO₃ reacts should be determined.

Concept Introduction: The reaction which requires energy for the conversion of reactant to product is called as endothermic reaction whereas the reaction that releases some amount energy during the conversion of reactant to product is called as exothermic reaction.

(c)

Interpretation Introduction

Interpretation: The amount of energy in kilojoules required when 150 g of O₂ is formed should be determined.

Concept Introduction: The reaction which requires energy for the conversion of reactant to product is called as endothermic reaction whereas the reaction that releases some amount energy during the conversion of reactant to product is called as exothermic reaction.

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Answer 5

Chapter 9, Problem 79CP

(a)

Interpretation Introduction

Interpretation: Whether the given reaction is exothermic or endothermic should be determined.

Concept Introduction: The reaction which requires energy for the conversion of reactant to product is called as endothermic reaction whereas the reaction that releases some amount energy during the conversion of reactant to product is called as exothermic reaction.

(b)

Interpretation Introduction

Interpretation: The amount of energy in kilojoules required when 1.5 mol of SO₃ reacts should be determined.

Concept Introduction: The reaction which requires energy for the conversion of reactant to product is called as endothermic reaction whereas the reaction that releases some amount energy during the conversion of reactant to product is called as exothermic reaction.

(c)

Interpretation Introduction

Interpretation: The amount of energy in kilojoules required when 150 g of O₂ is formed should be determined.

Concept Introduction: The reaction which requires energy for the conversion of reactant to product is called as endothermic reaction whereas the reaction that releases some amount energy during the conversion of reactant to product is called as exothermic reaction.

Answer 6

Chapter 9, Problem 79CP

(a)

Interpretation Introduction

Interpretation: Whether the given reaction is exothermic or endothermic should be determined.

Concept Introduction: The reaction which requires energy for the conversion of reactant to product is called as endothermic reaction whereas the reaction that releases some amount energy during the conversion of reactant to product is called as exothermic reaction.

Answer 7

Chapter 9, Problem 79CP

(a)

Interpretation Introduction

Interpretation: Whether the given reaction is exothermic or endothermic should be determined.

Concept Introduction: The reaction which requires energy for the conversion of reactant to product is called as endothermic reaction whereas the reaction that releases some amount energy during the conversion of reactant to product is called as exothermic reaction.

Answer 8

(b)

Interpretation Introduction

Interpretation: The amount of energy in kilojoules required when 1.5 mol of SO₃ reacts should be determined.

Concept Introduction: The reaction which requires energy for the conversion of reactant to product is called as endothermic reaction whereas the reaction that releases some amount energy during the conversion of reactant to product is called as exothermic reaction.

Answer 9

(b)

Interpretation Introduction

Interpretation: The amount of energy in kilojoules required when 1.5 mol of SO₃ reacts should be determined.

Concept Introduction: The reaction which requires energy for the conversion of reactant to product is called as endothermic reaction whereas the reaction that releases some amount energy during the conversion of reactant to product is called as exothermic reaction.

Answer 10

(c)

Interpretation Introduction

Interpretation: The amount of energy in kilojoules required when 150 g of O₂ is formed should be determined.

Concept Introduction: The reaction which requires energy for the conversion of reactant to product is called as endothermic reaction whereas the reaction that releases some amount energy during the conversion of reactant to product is called as exothermic reaction.

Answer 11

(c)

Interpretation Introduction

Interpretation: The amount of energy in kilojoules required when 150 g of O₂ is formed should be determined.

Concept Introduction: The reaction which requires energy for the conversion of reactant to product is called as endothermic reaction whereas the reaction that releases some amount energy during the conversion of reactant to product is called as exothermic reaction.

Answer 12

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Answer 13

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Answer 14

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Answer 15

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Solution Summary: The author explains that the reaction requires energy for the conversion of reactant to product, whereas it releases some amount of energy during this conversion.

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