# The Δ r G o value and equilibrium constant for the formation of titanium carbide should be calculated. Concept introduction: The Gibbs free energy or the free energy change is a thermodynamic quantity represented by Δ r G o . It can be calculated in a similar manner as entropy and enthalpy. The expression for the free energy change is: Δ r G ° = ∑ nΔ f G ° ( products ) - ∑ nΔ f G ° ( reactants ) Δ r G o is related to the equilibrium constant K p by the equation, Δ r G o =-RTlnK p The rearranged expression is, K p = e - Δ r G o RT ### Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640 ### Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640

#### Solutions

Chapter 18, Problem 65IL

(a)

Interpretation Introduction

## Interpretation:The ΔrGo value and equilibrium constant for the formation of titanium carbide should be calculated.Concept introduction:The Gibbs free energy or the free energy change is a thermodynamic quantity represented by ΔrGo. It can be calculated in a similar manner as entropy and enthalpy.  The expression for the free energy change is:  ΔrG°= ∑nΔfG°(products)- ∑nΔfG°(reactants)ΔrGo is related to the equilibrium constant Kp by the equation,  ΔrGo=-RTlnKpThe rearranged expression is,  Kp= e-ΔrGoRT

(b)

Interpretation Introduction

### Interpretation:It should be identified that the reaction will be product favoured at equilibrium at 727oC .Concept introduction:The Gibbs free energy or the free energy change is a thermodynamic quantity represented by ΔrGo. It can be calculated in a similar manner as entropy and enthalpy.  The expression for the free energy change is:  ΔrG°= ∑nΔfG°(products)- ∑nΔfG°(reactants)ΔrGo is related to the equilibrium constant Kp by the equation,  ΔrGo=-RTlnKpThe rearranged expression is,  Kp= e-ΔrGoRT

(c)

Interpretation Introduction

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