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Chemistry

9th Edition
Steven S. Zumdahl
ISBN: 9781133611097

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BuyFindarrow_forward

Chemistry

9th Edition
Steven S. Zumdahl
ISBN: 9781133611097
Textbook Problem

Predict the sign of ∆Ssurr for the following processes.

a. H2O(l) → H2O(g)

b. I2(g) → I2(s)

 (a)

Interpretation Introduction

Interpretation: The sign of ΔSsurr is to be predicted in each case.

Concept introduction: Entropy is the measure of degree of disorder or randomness. Entropy of surrounding ΔSsurr decreases for endothermic process whereas, it increases for exothermic process.

The process that involves consumption of heat is known as exothermic process whereas the process that involves release of heat is known as exothermic process

Explanation

Explanation

The stated process is,

H2O(l)H2O(g)

The degree of disorder (randomness) increases during the conversation of liquid state into vapor state. Heat is consumed in this process. It means that, the process is endothermic

(b)

Interpretation Introduction

Interpretation: The sign of ΔSsurr is to be predicted in each case.

Concept introduction: Entropy is the measure of degree of disorder or randomness. Entropy of surrounding ΔSsurr decreases for endothermic process whereas, it increases for exothermic process.

The process that involves consumption of heat is known as exothermic process whereas the process that involves release of heat is known as exothermic process

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