The reason for the statement that a cooling sensation is felt when the doctor sprays a liquid on the skin before injecting a painkiller is to be explained. Concept Introduction: The physical process involving phase change can also be endothermic or exothermic. The latent heat required for phase change is either taken from the surroundings in case of an endothermic process or it is released to the surroundings in case of an exothermic process.

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Answer 1

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Chapter 6, Problem 69QP

Interpretation Introduction

Interpretation:

The reason for the statement that a cooling sensation is felt when the doctor sprays a liquid on the skin before injecting a painkiller is to be explained.

Concept Introduction:

The physical process involving phase change can also be endothermic or exothermic.

The latent heat required for phase change is either taken from the surroundings in case of an endothermic process or it is released to the surroundings in case of an exothermic process.

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Answer 2

Question

Chapter 6, Problem 69QP

Interpretation Introduction

Interpretation:

The reason for the statement that a cooling sensation is felt when the doctor sprays a liquid on the skin before injecting a painkiller is to be explained.

Concept Introduction:

The physical process involving phase change can also be endothermic or exothermic.

The latent heat required for phase change is either taken from the surroundings in case of an endothermic process or it is released to the surroundings in case of an exothermic process.

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Answer 3

Question

Chapter 6, Problem 69QP

Interpretation Introduction

Interpretation:

The reason for the statement that a cooling sensation is felt when the doctor sprays a liquid on the skin before injecting a painkiller is to be explained.

Concept Introduction:

The physical process involving phase change can also be endothermic or exothermic.

The latent heat required for phase change is either taken from the surroundings in case of an endothermic process or it is released to the surroundings in case of an exothermic process.

Expert Solution & Answer

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Answer 4

Question

Chapter 6, Problem 69QP

Interpretation Introduction

Interpretation:

The reason for the statement that a cooling sensation is felt when the doctor sprays a liquid on the skin before injecting a painkiller is to be explained.

Concept Introduction:

The physical process involving phase change can also be endothermic or exothermic.

The latent heat required for phase change is either taken from the surroundings in case of an endothermic process or it is released to the surroundings in case of an exothermic process.

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Answer 5

Chapter 6, Problem 69QP

Interpretation Introduction

Interpretation:

The reason for the statement that a cooling sensation is felt when the doctor sprays a liquid on the skin before injecting a painkiller is to be explained.

Concept Introduction:

The physical process involving phase change can also be endothermic or exothermic.

The latent heat required for phase change is either taken from the surroundings in case of an endothermic process or it is released to the surroundings in case of an exothermic process.

Answer 6

Chapter 6, Problem 69QP

Interpretation Introduction

Interpretation:

The reason for the statement that a cooling sensation is felt when the doctor sprays a liquid on the skin before injecting a painkiller is to be explained.

Concept Introduction:

The physical process involving phase change can also be endothermic or exothermic.

The latent heat required for phase change is either taken from the surroundings in case of an endothermic process or it is released to the surroundings in case of an exothermic process.

Answer 7

Chapter 6, Problem 69QP

Interpretation Introduction

Interpretation:

The reason for the statement that a cooling sensation is felt when the doctor sprays a liquid on the skin before injecting a painkiller is to be explained.

Concept Introduction:

The physical process involving phase change can also be endothermic or exothermic.

The latent heat required for phase change is either taken from the surroundings in case of an endothermic process or it is released to the surroundings in case of an exothermic process.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 6 - Prob. 1QC Ch. 6 - Prob. 2QC Ch. 6 - Prob. 3QC Ch. 6 - Prob. 4QC Ch. 6 - Prob. 5QC Ch. 6 - Prob. 6QC Ch. 6 - Prob. 7QC Ch. 6 - Prob. 1PP Ch. 6 - Prob. 2PP Ch. 6 - Prob. 3PP

Solution Summary: The author explains that the cooling sensation is felt when the doctor sprays a liquid on the skin before injecting the painkiller. Evaporation being an endothermic process causes cooling.

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