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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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Chapter
Section
BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

For each of the following, tell whether the process is exothermic or endothermic. (No calculations are required.)

  1. (a) H2O() → H2O(s)
  2. (b) 2 H2(g) + O2(g) → 2 H2O(g)
  3. (c) H2O(, 25 °C) → H2O(, 15 °C)
  4. (d) H2O() → H2O(g)

(a)

Interpretation Introduction

Interpretation: Identify the following reactions are exothermic or endothermic.

Concept Introduction:

In exothermic process, the energy of the system decreases and the energy of the surrounding increase. In endothermic process the energy of the system increases and the energy of the surrounding decrease.

Explanation

The given reaction is H2O(l)H2O(

(b)

Interpretation Introduction

Interpretation: Identify the following reactions are exothermic or endothermic.

Concept Introduction:

 In exothermic process, the energy of the system decreases and the energy of the surrounding increase. In endothermic process the energy of the system increases and the energy of the surrounding decrease.

(c)

Interpretation Introduction

Interpretation: Identify the following reactions are exothermic or endothermic.

Concept Introduction:

In exothermic process, the energy of the system decreases and the energy of the surrounding increase. In endothermic process the energy of the system increases and the energy of the surrounding decrease.

(d)

Interpretation Introduction

Interpretation: Identify the following reactions are exothermic or endothermic.

Concept Introduction:

In exothermic process, the energy of the system decreases and the energy of the surrounding increase. In endothermic process the energy of the system increases and the energy of the surrounding decrease.

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