The energy band for molecular orbital and electron population of a semiconductor has to be drawn. Also higher electrical conductivity of semiconductor than insulator has to be explained. Concept introduction: Semiconductor: A material which can conduct electricity in range between a metal and an insulator is known as semiconductor. Addition of small amount of impurities increases conductivity of semiconductor and the process is known as doping. n-type and p-type are two types of doped semiconductors. n-type: This type of doped semiconductor is the one in which many free electrons are present in conduction band. p-type: This type of doped semiconductor is the one in which holes are present in conduction band.

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Answer 1

Question

Chapter 21, Problem 21.68SP

(a)

Interpretation Introduction

Interpretation:

The energy band for molecular orbital and electron population of a semiconductor has to be drawn. Also higher electrical conductivity of semiconductor than insulator has to be explained.

Concept introduction:

Semiconductor: A material which can conduct electricity in range between a metal and an insulator is known as semiconductor. Addition of small amount of impurities increases conductivity of semiconductor and the process is known as doping. n-type and p-type are two types of doped semiconductors.

n-type: This type of doped semiconductor is the one in which many free electrons are present in conduction band.

p-type: This type of doped semiconductor is the one in which holes are present in conduction band.

(b)

Interpretation Introduction

Interpretation:

The energy band for molecular orbital and electron population of an insulator has to be drawn.

Concept introduction:

Insulator:

Insulators are the one in which electrons are filled in valence band with a vacant conduction band and they are parted away by band gap.

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Explain the terms : (a) Intrinsic semiconductor (b) Extrinsic semiconductor.

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(a) Why electrical conductivity of the semiconductor increases with increase in temperature? Illustrate and explain the above effect with hypothetical band energy diagrams, showing one at 25 °C and another at 50 °C? (b) The number average molecular weight of polyvinyl chloride (PVC) is 110000 g/mol and the Polydispersity index (PDI) is 1.3. What is the weight average molecular weight and degree of polymerization of PVC? Note: Molar mass of vinyl chloride is 62.498 g/mol

Answer 2

Question

Chapter 21, Problem 21.68SP

(a)

Interpretation Introduction

Interpretation:

The energy band for molecular orbital and electron population of a semiconductor has to be drawn. Also higher electrical conductivity of semiconductor than insulator has to be explained.

Concept introduction:

Semiconductor: A material which can conduct electricity in range between a metal and an insulator is known as semiconductor. Addition of small amount of impurities increases conductivity of semiconductor and the process is known as doping. n-type and p-type are two types of doped semiconductors.

n-type: This type of doped semiconductor is the one in which many free electrons are present in conduction band.

p-type: This type of doped semiconductor is the one in which holes are present in conduction band.

(b)

Interpretation Introduction

Interpretation:

The energy band for molecular orbital and electron population of an insulator has to be drawn.

Concept introduction:

Insulator:

Insulators are the one in which electrons are filled in valence band with a vacant conduction band and they are parted away by band gap.

Expert Solution & Answer

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Answer 3

Question

Chapter 21, Problem 21.68SP

(a)

Interpretation Introduction

Interpretation:

The energy band for molecular orbital and electron population of a semiconductor has to be drawn. Also higher electrical conductivity of semiconductor than insulator has to be explained.

Concept introduction:

Semiconductor: A material which can conduct electricity in range between a metal and an insulator is known as semiconductor. Addition of small amount of impurities increases conductivity of semiconductor and the process is known as doping. n-type and p-type are two types of doped semiconductors.

n-type: This type of doped semiconductor is the one in which many free electrons are present in conduction band.

p-type: This type of doped semiconductor is the one in which holes are present in conduction band.

(b)

Interpretation Introduction

Interpretation:

The energy band for molecular orbital and electron population of an insulator has to be drawn.

Concept introduction:

Insulator:

Insulators are the one in which electrons are filled in valence band with a vacant conduction band and they are parted away by band gap.

Expert Solution & Answer

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Answer 4

Question

Chapter 21, Problem 21.68SP

(a)

Interpretation Introduction

Interpretation:

The energy band for molecular orbital and electron population of a semiconductor has to be drawn. Also higher electrical conductivity of semiconductor than insulator has to be explained.

Concept introduction:

Semiconductor: A material which can conduct electricity in range between a metal and an insulator is known as semiconductor. Addition of small amount of impurities increases conductivity of semiconductor and the process is known as doping. n-type and p-type are two types of doped semiconductors.

n-type: This type of doped semiconductor is the one in which many free electrons are present in conduction band.

p-type: This type of doped semiconductor is the one in which holes are present in conduction band.

(b)

Interpretation Introduction

Interpretation:

The energy band for molecular orbital and electron population of an insulator has to be drawn.

Concept introduction:

Insulator:

Insulators are the one in which electrons are filled in valence band with a vacant conduction band and they are parted away by band gap.

Expert Solution & Answer

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Answer 5

Chapter 21, Problem 21.68SP

(a)

Interpretation Introduction

Interpretation:

The energy band for molecular orbital and electron population of a semiconductor has to be drawn. Also higher electrical conductivity of semiconductor than insulator has to be explained.

Concept introduction:

Semiconductor: A material which can conduct electricity in range between a metal and an insulator is known as semiconductor. Addition of small amount of impurities increases conductivity of semiconductor and the process is known as doping. n-type and p-type are two types of doped semiconductors.

n-type: This type of doped semiconductor is the one in which many free electrons are present in conduction band.

p-type: This type of doped semiconductor is the one in which holes are present in conduction band.

(b)

Interpretation Introduction

Interpretation:

The energy band for molecular orbital and electron population of an insulator has to be drawn.

Concept introduction:

Insulator:

Insulators are the one in which electrons are filled in valence band with a vacant conduction band and they are parted away by band gap.

Answer 6

Chapter 21, Problem 21.68SP

(a)

Interpretation Introduction

Interpretation:

The energy band for molecular orbital and electron population of a semiconductor has to be drawn. Also higher electrical conductivity of semiconductor than insulator has to be explained.

Concept introduction:

Semiconductor: A material which can conduct electricity in range between a metal and an insulator is known as semiconductor. Addition of small amount of impurities increases conductivity of semiconductor and the process is known as doping. n-type and p-type are two types of doped semiconductors.

n-type: This type of doped semiconductor is the one in which many free electrons are present in conduction band.

p-type: This type of doped semiconductor is the one in which holes are present in conduction band.

Answer 7

Chapter 21, Problem 21.68SP

(a)

Interpretation Introduction

Interpretation:

The energy band for molecular orbital and electron population of a semiconductor has to be drawn. Also higher electrical conductivity of semiconductor than insulator has to be explained.

Concept introduction:

Semiconductor: A material which can conduct electricity in range between a metal and an insulator is known as semiconductor. Addition of small amount of impurities increases conductivity of semiconductor and the process is known as doping. n-type and p-type are two types of doped semiconductors.

n-type: This type of doped semiconductor is the one in which many free electrons are present in conduction band.

p-type: This type of doped semiconductor is the one in which holes are present in conduction band.

Answer 8

(b)

Interpretation Introduction

Interpretation:

The energy band for molecular orbital and electron population of an insulator has to be drawn.

Concept introduction:

Insulator:

Insulators are the one in which electrons are filled in valence band with a vacant conduction band and they are parted away by band gap.

Answer 9

(b)

Interpretation Introduction

Interpretation:

The energy band for molecular orbital and electron population of an insulator has to be drawn.

Concept introduction:

Insulator:

Insulators are the one in which electrons are filled in valence band with a vacant conduction band and they are parted away by band gap.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 21.1 - In view of the 3charge on the PO43 ion, explain...Ch. 21.2 - Prob. 21.2P Ch. 21.3 - Prob. 21.3P Ch. 21.4 - Prob. 21.4P Ch. 21.4 - Prob. 21.5CP Ch. 21.5 - Prob. 21.6P Ch. 21.5 - Prob. 21.7CP Ch. 21.6 - Prob. 21.8P Ch. 21.7 - Show that one unit cell of YBa2Cu3O7 (Figure...Ch. 21.8 - Prob. 21.10P

Solution Summary: The author explains the energy band for molecular orbital and electron population of a semiconductor. Addition of impurities increases conductivity of semiconductor and the process is known as doping.

Interpretation:

The energy band for molecular orbital and electron population of an insulator has to be drawn.

Concept introduction:

Insulator:

Insulators are the one in which electrons are filled in valence band with a vacant conduction band and they are parted away by band gap.

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Chapter 21 Solutions

Solution Summary: The author explains the energy band for molecular orbital and electron population of a semiconductor. Addition of impurities increases conductivity of semiconductor and the process is known as doping.

Interpretation: The energy band for molecular orbital and electron population of an insulator has to be drawn. Concept introduction: Insulator: Insulators are the one in which electrons are filled in valence band with a vacant conduction band and they are parted away by band gap.

Want to see the full answer?

Chapter 21 Solutions

Interpretation:

The energy band for molecular orbital and electron population of an insulator has to be drawn.

Concept introduction:

Insulator:

Insulators are the one in which electrons are filled in valence band with a vacant conduction band and they are parted away by band gap.