Whether the striking a match is an exothermic or endothermic process should be identified. Concept introduction: The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

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Answer 1

Question

Chapter 15, Problem 68AP

a

Interpretation Introduction

Interpretation:

Whether the striking a match is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

b

Interpretation Introduction

Interpretation:

Whether freezing water in the ice-cube tray is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

c

Interpretation Introduction

Interpretation:

Whether boiling potatoes is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

d

Interpretation Introduction

Interpretation:

Whether vaporizing water is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

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13.84. Chlorine atoms react with methane, forming HCI and CH3. The rate constant for the reaction is 6.0 × 107 M¹ s¹ at 298 K. When the experiment was run at three other temperatures, the following data were collected: T (K) k (M-1 s-1) 303 6.5 × 107 308 7.0 × 107 313 7.5 x 107 a. Calculate the values of the activation energy and the frequency factor for the reaction. b. What is the value of the rate constant in the lower stratosphere, where T = 218 K?

Answer 2

Question

Chapter 15, Problem 68AP

a

Interpretation Introduction

Interpretation:

Whether the striking a match is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

b

Interpretation Introduction

Interpretation:

Whether freezing water in the ice-cube tray is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

c

Interpretation Introduction

Interpretation:

Whether boiling potatoes is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

d

Interpretation Introduction

Interpretation:

Whether vaporizing water is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

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Answer 3

Question

Chapter 15, Problem 68AP

a

Interpretation Introduction

Interpretation:

Whether the striking a match is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

b

Interpretation Introduction

Interpretation:

Whether freezing water in the ice-cube tray is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

c

Interpretation Introduction

Interpretation:

Whether boiling potatoes is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

d

Interpretation Introduction

Interpretation:

Whether vaporizing water is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

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Answer 4

Question

Chapter 15, Problem 68AP

a

Interpretation Introduction

Interpretation:

Whether the striking a match is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

b

Interpretation Introduction

Interpretation:

Whether freezing water in the ice-cube tray is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

c

Interpretation Introduction

Interpretation:

Whether boiling potatoes is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

d

Interpretation Introduction

Interpretation:

Whether vaporizing water is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

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Answer 5

Chapter 15, Problem 68AP

a

Interpretation Introduction

Interpretation:

Whether the striking a match is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

b

Interpretation Introduction

Interpretation:

Whether freezing water in the ice-cube tray is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

c

Interpretation Introduction

Interpretation:

Whether boiling potatoes is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

d

Interpretation Introduction

Interpretation:

Whether vaporizing water is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

Answer 6

Chapter 15, Problem 68AP

a

Interpretation Introduction

Interpretation:

Whether the striking a match is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

Answer 7

Chapter 15, Problem 68AP

a

Interpretation Introduction

Interpretation:

Whether the striking a match is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

Answer 8

b

Interpretation Introduction

Interpretation:

Whether freezing water in the ice-cube tray is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

Answer 9

b

Interpretation Introduction

Interpretation:

Whether freezing water in the ice-cube tray is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

Answer 10

c

Interpretation Introduction

Interpretation:

Whether boiling potatoes is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

Answer 11

c

Interpretation Introduction

Interpretation:

Whether boiling potatoes is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

Answer 12

d

Interpretation Introduction

Interpretation:

Whether vaporizing water is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

Answer 13

d

Interpretation Introduction

Interpretation:

Whether vaporizing water is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

Answer 14

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Answer 15

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Answer 16

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Answer 17

Ch. 15 - Prob. 1RQ Ch. 15 - Prob. 2RQ Ch. 15 - Prob. 3RQ Ch. 15 - Prob. 4RQ Ch. 15 - Prob. 5P Ch. 15 - Prob. 6P Ch. 15 - Prob. 7P Ch. 15 - Prob. 8P Ch. 15 - Prob. 9P Ch. 15 - Prob. 10P

Whether the striking a match is an exothermic or endothermic process should be identified. Concept introduction: The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

Interpretation: Whether the striking a match is an exothermic or endothermic process should be identified. Concept introduction: The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

Interpretation: Whether boiling potatoes is an exothermic or endothermic process should be identified. Concept introduction: The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

Interpretation: Whether vaporizing water is an exothermic or endothermic process should be identified. Concept introduction: The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

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Chapter 15 Solutions

Interpretation:

Whether the striking a match is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

Interpretation:

Whether boiling potatoes is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.

Interpretation:

Whether vaporizing water is an exothermic or endothermic process should be identified.

Concept introduction:

The process or reaction which results in producing heat is called as exothermic while the process or reaction which results in absorbing heat is called as endothermic.