CHEMISTRY:MOLECULAR...(LL)-W/CONNECT
CHEMISTRY:MOLECULAR...(LL)-W/CONNECT
9th Edition
ISBN: 9781264094202
Author: SILBERBERG
Publisher: MCG
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Chapter 20, Problem 20.12P

(a)

Interpretation Introduction

Interpretation:

The sign of the entropy ΔSsys change expected for given melting process has to be predicted.

Concept introduction:

Entropy change:

The sign of ΔSo for a reaction is determined by using the following rules:

  • When a molecule is broken down and gives two or more smaller molecules.
  • When the moles of gas is increases (by the breaking of molecules)
  • Solid changes to liquid or gas state or liquid state changes to gas state.

Entropy(S): it is used to describe the disorder. It is the amount of arrangements possible in a system at a particular state.

If the disorder increases in a system, then ΔS>0 positive

If the disorder decreases in a system, then ΔS<0 negative

If the disorder equal in a system, then ΔS=0

(b)

Interpretation Introduction

Interpretation:

The sign of the entropy ΔSsys change expected for given precipitation process has to be predicted.

Concept introduction:

Entropy change:

The sign of ΔSo for a reaction is determined by using the following rules:

  • When a molecule is broken down and gives two or more smaller molecules.
  • When the moles of gas is increases (by the breaking of molecules)
  • Solid changes to liquid or gas state or liquid state changes to gas state.

Entropy(S): it is used to describe the disorder. It is the amount of arrangements possible in a system at a particular state.

If the disorder increases in a system, then ΔS>0 positive

If the disorder decreases in a system, then ΔS<0 negative

If the disorder equal in a system, then ΔS=0

(c)

Interpretation Introduction

Interpretation:

The sign of the entropy ΔSsys change expected for given dew formation process has to be predicted.

Concept introduction:

Entropy change:

The sign of ΔSo for a reaction is determined by using the following rules:

  • When a molecule is broken down and gives two or more smaller molecules.
  • When the moles of gas is increases (by the breaking of molecules)
  • Solid changes to liquid or gas state or liquid state changes to gas state.

Entropy(S): it is used to describe the disorder. It is the amount of arrangements possible in a system at a particular state.

If the disorder increases in a system, then ΔS>0 positive

If the disorder decreases in a system, then ΔS<0 negative

If the disorder equal in a system, then ΔS=0

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