The areas for the pure solid, liquid and gas phases have to be labeled. Concept Introduction: Every pure substance that exists in all three phases has a characteristic phase diagram like below. Figure 1

Question

The equilibrium constant for the reaction PCI5(g) → PCI3 (g) + Cl₂(g) is 1.00 x 106 at 637 K and 9.10 x10² at 800 K. Use the van't Hoff equation to determine the standard enthalpy of reaction. Units need to be in kJ/mol. Report values to 3 sig figs. Use gas constant value of 8.3145 J/molk.

Answer 1

Question

Chapter 9, Problem 105QRT

(a)

Interpretation Introduction

Interpretation:

The areas for the pure solid, liquid and gas phases have to be labeled.

Concept Introduction:

Every pure substance that exists in all three phases has a characteristic phase diagram like below.

Figure 1

(b)

Interpretation Introduction

Interpretation:

A point on the diagram at which red phosphorus liquid and vapor are in equilibrium has to be labeled.

Concept Introduction:

Refer part (a).

(c)

Interpretation Introduction

Interpretation:

The reason why the solid red phosphorus cannot be melted in a container open to the atmosphere has to be explained.

(d)

Interpretation Introduction

Interpretation:

All the phase changes that occur sequentially when conditions change from point B to point A has to be identified.

Concept Introduction:

The temperature at which the vapour pressure of the liquid equals to the atmospheric pressure on the surface of the liquid is known as the boiling point.

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The equilibrium constant for the reaction PCI5(g) → PCI3 (g) + Cl₂(g) is 1.00 x 106 at 637 K and 9.10 x10² at 800 K. Use the van't Hoff equation to determine the standard enthalpy of reaction. Units need to be in kJ/mol. Report values to 3 sig figs. Use gas constant value of 8.3145 J/molk.

The equilibrium constant for the reaction, 3 H2(g) + N2(g)= 2NH3(g), at a given temperature is 1.4 x 10–7. Calculate the equilibrium concentration of ammonia, if [H2] = 1.2 x 10–2 mol L–1 and [N2] = 3.2 x 10–3 mol L–1.

The normal freezing point of n-octane 1C8H182 is -57 °C. Is there any temperature at which liquid n-octane and solid n-octane are in equilibrium? Explain.

Answer 2

Question

Chapter 9, Problem 105QRT

(a)

Interpretation Introduction

Interpretation:

The areas for the pure solid, liquid and gas phases have to be labeled.

Concept Introduction:

Every pure substance that exists in all three phases has a characteristic phase diagram like below.

Figure 1

(b)

Interpretation Introduction

Interpretation:

A point on the diagram at which red phosphorus liquid and vapor are in equilibrium has to be labeled.

Concept Introduction:

Refer part (a).

(c)

Interpretation Introduction

Interpretation:

The reason why the solid red phosphorus cannot be melted in a container open to the atmosphere has to be explained.

(d)

Interpretation Introduction

Interpretation:

All the phase changes that occur sequentially when conditions change from point B to point A has to be identified.

Concept Introduction:

The temperature at which the vapour pressure of the liquid equals to the atmospheric pressure on the surface of the liquid is known as the boiling point.

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Answer 3

Question

Chapter 9, Problem 105QRT

(a)

Interpretation Introduction

Interpretation:

The areas for the pure solid, liquid and gas phases have to be labeled.

Concept Introduction:

Every pure substance that exists in all three phases has a characteristic phase diagram like below.

Figure 1

(b)

Interpretation Introduction

Interpretation:

A point on the diagram at which red phosphorus liquid and vapor are in equilibrium has to be labeled.

Concept Introduction:

Refer part (a).

(c)

Interpretation Introduction

Interpretation:

The reason why the solid red phosphorus cannot be melted in a container open to the atmosphere has to be explained.

(d)

Interpretation Introduction

Interpretation:

All the phase changes that occur sequentially when conditions change from point B to point A has to be identified.

Concept Introduction:

The temperature at which the vapour pressure of the liquid equals to the atmospheric pressure on the surface of the liquid is known as the boiling point.

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Answer 4

Question

Chapter 9, Problem 105QRT

(a)

Interpretation Introduction

Interpretation:

The areas for the pure solid, liquid and gas phases have to be labeled.

Concept Introduction:

Every pure substance that exists in all three phases has a characteristic phase diagram like below.

Figure 1

(b)

Interpretation Introduction

Interpretation:

A point on the diagram at which red phosphorus liquid and vapor are in equilibrium has to be labeled.

Concept Introduction:

Refer part (a).

(c)

Interpretation Introduction

Interpretation:

The reason why the solid red phosphorus cannot be melted in a container open to the atmosphere has to be explained.

(d)

Interpretation Introduction

Interpretation:

All the phase changes that occur sequentially when conditions change from point B to point A has to be identified.

Concept Introduction:

The temperature at which the vapour pressure of the liquid equals to the atmospheric pressure on the surface of the liquid is known as the boiling point.

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Answer 5

Chapter 9, Problem 105QRT

(a)

Interpretation Introduction

Interpretation:

The areas for the pure solid, liquid and gas phases have to be labeled.

Concept Introduction:

Every pure substance that exists in all three phases has a characteristic phase diagram like below.

Figure 1

(b)

Interpretation Introduction

Interpretation:

A point on the diagram at which red phosphorus liquid and vapor are in equilibrium has to be labeled.

Concept Introduction:

Refer part (a).

(c)

Interpretation Introduction

Interpretation:

The reason why the solid red phosphorus cannot be melted in a container open to the atmosphere has to be explained.

(d)

Interpretation Introduction

Interpretation:

All the phase changes that occur sequentially when conditions change from point B to point A has to be identified.

Concept Introduction:

The temperature at which the vapour pressure of the liquid equals to the atmospheric pressure on the surface of the liquid is known as the boiling point.

Answer 6

Chapter 9, Problem 105QRT

(a)

Interpretation Introduction

Interpretation:

The areas for the pure solid, liquid and gas phases have to be labeled.

Concept Introduction:

Every pure substance that exists in all three phases has a characteristic phase diagram like below.

Figure 1

Answer 7

Chapter 9, Problem 105QRT

(a)

Interpretation Introduction

Interpretation:

The areas for the pure solid, liquid and gas phases have to be labeled.

Concept Introduction:

Every pure substance that exists in all three phases has a characteristic phase diagram like below.

Figure 1

Answer 8

(b)

Interpretation Introduction

Interpretation:

A point on the diagram at which red phosphorus liquid and vapor are in equilibrium has to be labeled.

Concept Introduction:

Refer part (a).

Answer 9

(b)

Interpretation Introduction

Interpretation:

A point on the diagram at which red phosphorus liquid and vapor are in equilibrium has to be labeled.

Concept Introduction:

Refer part (a).

Answer 10

(c)

Interpretation Introduction

Interpretation:

The reason why the solid red phosphorus cannot be melted in a container open to the atmosphere has to be explained.

Answer 11

(c)

Interpretation Introduction

Interpretation:

The reason why the solid red phosphorus cannot be melted in a container open to the atmosphere has to be explained.

Answer 12

(d)

Interpretation Introduction

Interpretation:

All the phase changes that occur sequentially when conditions change from point B to point A has to be identified.

Concept Introduction:

The temperature at which the vapour pressure of the liquid equals to the atmospheric pressure on the surface of the liquid is known as the boiling point.

Answer 13

(d)

Interpretation Introduction

Interpretation:

All the phase changes that occur sequentially when conditions change from point B to point A has to be identified.

Concept Introduction:

The temperature at which the vapour pressure of the liquid equals to the atmospheric pressure on the surface of the liquid is known as the boiling point.

Answer 14

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Answer 25

Ch. 9.1 - Prob. 9.1CE Ch. 9.2 - Prob. 9.2CE Ch. 9.2 - Prob. 9.1PSP Ch. 9.2 - What mass (g) of ethanol, CH3CH2OH(), can be...Ch. 9.3 - Prob. 9.3CE Ch. 9.3 - Prob. 9.4CE Ch. 9.3 - Prob. 9.3PSP Ch. 9.4 - What types of solids are these substances? (a) The...Ch. 9.4 - Prob. 9.5PSP Ch. 9.4 - Prob. 9.5E

The areas for the pure solid, liquid and gas phases have to be labeled. Concept Introduction: Every pure substance that exists in all three phases has a characteristic phase diagram like below. Figure 1

Solution Summary: The author explains that the three phases of phosphorus have a characteristic phase diagram. The temperature at which the vapour pressure equals to the atmospheric pressure on the surface of the liquid is known as the boiling point.

Interpretation:

The areas for the pure solid, liquid and gas phases have to be labeled.

Concept Introduction:

Every pure substance that exists in all three phases has a characteristic phase diagram like below.

Figure 1

Interpretation:

A point on the diagram at which red phosphorus liquid and vapor are in equilibrium has to be labeled.

Concept Introduction:

Refer part (a).

Interpretation:

The reason why the solid red phosphorus cannot be melted in a container open to the atmosphere has to be explained.

Chapter 9 Solutions

The areas for the pure solid, liquid and gas phases have to be labeled. Concept Introduction: Every pure substance that exists in all three phases has a characteristic phase diagram like below. Figure 1

Solution Summary: The author explains that the three phases of phosphorus have a characteristic phase diagram. The temperature at which the vapour pressure equals to the atmospheric pressure on the surface of the liquid is known as the boiling point.

Interpretation: The areas for the pure solid, liquid and gas phases have to be labeled. Concept Introduction: Every pure substance that exists in all three phases has a characteristic phase diagram like below. Figure 1

Interpretation: A point on the diagram at which red phosphorus liquid and vapor are in equilibrium has to be labeled. Concept Introduction: Refer part (a).

Interpretation: The reason why the solid red phosphorus cannot be melted in a container open to the atmosphere has to be explained.

Chapter 9 Solutions

Interpretation:

The areas for the pure solid, liquid and gas phases have to be labeled.

Concept Introduction:

Every pure substance that exists in all three phases has a characteristic phase diagram like below.

Figure 1

Interpretation:

A point on the diagram at which red phosphorus liquid and vapor are in equilibrium has to be labeled.

Concept Introduction:

Refer part (a).

Interpretation:

The reason why the solid red phosphorus cannot be melted in a container open to the atmosphere has to be explained.