For the reaction SO2(g)+ Cl2(g)→ SO2Cl2(g)Keq = 0.377 at 25 °C,what is ΔrG° for the reaction?

A) 202.7 J/mol B) 88.02 J/mol C) 2420 J/mol D) 1049 J/mol E) -1049 J/mol A) 202.7 J/mol B) 88.02 J/mol C) 2420 J/mol D) 1049 J/mol E) -1049 J/mol

What is ΔrG° at 25 °C? CO2(g)→ CO2(aq)ΔrH° = -19.4 kJ ΔrS° = 92.3 J/K

A) 2.1 kJ B) -46.9 kJ C) -17.1 kJ D) -19.5 kJ E) -21.7 kJ A) 2.1 kJ B) -46.9 kJ C) -17.1 kJ D) -19.5 kJ E) -21.7 kJ

For the reaction PCl5(g)→ PCl3(g)+ Cl2(g)at 298 K,Keq = 1.87 × 10-7,ΔrS° = 181.92 J/mol K.Compute ΔrH° for this reaction.

A) 15.8 kJ/mol B) 220 kJ/mol C) 143 kJ/mol D) 54.2 kJ/mol E) 92.6 kJ/mol A) 15.8 kJ/mol B) 220 kJ/mol C) 143 kJ/mol D) 54.2 kJ/mol E) 92.6 kJ/mol

A) -24.8 kJ B) -299.2 kJ C) +24.8 kJ D) 149.6 kJ E) +299.2 kJ A) -24.8 kJ B) -299.2 kJ C) +24.8 kJ D) 149.6 kJ E) +299.2 kJ

What is ΔrG° at 25 °C? N2O4(g)→ 2 NO2(g)ΔrH° = 58.03 kJ ΔrS° = 176.7 J/K

A) 58.21 kJ B) 62.45 kJ C) 53.6 kJ D) 5.37 kJ E) 111 kJ A) 58.21 kJ B) 62.45 kJ C) 53.6 kJ D) 5.37 kJ E) 111 kJ

Order the following by increasing entropy. CO(g),COCl2(g),CO2(g),CaO(s)

A) CO2 2 B) CaO 2 2 C) COCl2 2 D) CO2 2 2 2 A) CO2 2 B) CaO 2 2 C) COCl2 2 D) CO2 2 2 2

Exam 13: Spontaneous Change: Entropy and Gibbs Energy

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The value of Δ_fG at 100.0 °C for the formation of phosphorus trichloride from its constituent elements, (g)+ (g)→ (g) Is ________ kJ mol^-1.At 25.0 °C for this reaction,Δ_fH° is -720.5 kJ mol^-1 and Is .

(Multiple Choice)

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Question 101

Calculate the entropy change for methanol at its normal boiling point of 64.5 °C.Δ_rH° = 38.0 kJ/mol.

(Multiple Choice)

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Question 102

Consider the following reaction: What is K_eq for this reaction at 25 °C?

(Multiple Choice)

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Question 103

For the reaction SO₂(g)+ Cl₂(g)→ SO₂Cl₂(g)K_eq = 0.377 at 25 °C,what is Δ_rG° for the reaction?

(Multiple Choice)

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Question 104

Consider the reaction: AB(g)? A(g)+ B(g) What is K_eq for this reaction at 425 K?

(Multiple Choice)

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Question 105

What is Δ_rG° at 25 °C? CO₂(g)→ CO₂(aq)Δ_rH° = -19.4 kJ Δ_rS° = 92.3 J/K

(Multiple Choice)

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Question 106

Consider the following reaction: What is Δ_rS° for the above reaction in J/mol K?

(Multiple Choice)

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Question 107

For the reaction PCl₅(g)→ PCl₃(g)+ Cl₂(g)at 298 K,K_eq = 1.87 × 10^-7,Δ_rS° = 181.92 J/mol K.Compute Δ_rH° for this reaction.

(Multiple Choice)

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Question 108

The change in Gibbs energy for a reaction:

(Multiple Choice)

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Question 109

A zero ΔG means the system is at equilibrium.

(True/False)

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Question 110

If a process is spontaneous,the reverse process is non spontaneous.

(True/False)

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Question 111

For a given reaction,Δ_rH = -26.6 kJ mol^-1 and Δ_rS = -77.0 J K^-1mol^-1.The reaction is spontaneous ________.Assume that Δ_rH and Δ_rS do not vary with temperature.

(Multiple Choice)

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Question 112

What is Δ_rG°?

(Multiple Choice)

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Question 113

Which material has the largest entropy?

(Multiple Choice)

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Question 114

What is Δ_rG° at 25 °C? N₂O₄(g)→ 2 NO₂(g)Δ_rH° = 58.03 kJ Δ_rS° = 176.7 J/K

(Multiple Choice)

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Question 115

For CdO(s)+ SO₃(g)→ CdSO₄(s),Δ_rH° = -279.4 kJ/mol,and Δ_rS° = -118.4 J/mol ∙ K.What is the temperature at which K_eq is 1.0 × 10⁴?

(Multiple Choice)

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Question 116

For CO(g)+ H₂(g)→ H₂CO(g),Δ_rH° = -5.36 kJ/mol,and Δ_rS° = -109.8 J/mol K.What is Δ_rG° in kJ/mol at 300 K?

(Multiple Choice)

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Question 117

In a sealed container,the rate of dissolving is equal to the rate of crystallization.Therefore we would expect:

(Multiple Choice)

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Question 118

Which of the following has the largest molar entropy?

(Multiple Choice)

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Question 119

Order the following by increasing entropy. CO(g),COCl₂(g),CO₂(g),CaO(s)

(Multiple Choice)

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Question 120

Showing 101 - 120 of 123

Exam 13: Spontaneous Change: Entropy and Gibbs Energy

The value of ΔfG at 100.0 °C for the formation of phosphorus trichloride from its constituent elements, (g)+ (g)→ (g) Is ________ kJ mol-1.At 25.0 °C for this reaction,ΔfH° is -720.5 kJ mol-1 and Is .

Calculate the entropy change for methanol at its normal boiling point of 64.5 °C.ΔrH° = 38.0 kJ/mol.

Consider the following reaction: What is Keq for this reaction at 25 °C?

For the reaction SO2(g)+ Cl2(g)→ SO2Cl2(g)Keq = 0.377 at 25 °C,what is ΔrG° for the reaction?

Consider the reaction: AB(g)? A(g)+ B(g) What is Keq for this reaction at 425 K?

What is ΔrG° at 25 °C? CO2(g)→ CO2(aq)ΔrH° = -19.4 kJ ΔrS° = 92.3 J/K

Consider the following reaction: What is ΔrS° for the above reaction in J/mol K?

For the reaction PCl5(g)→ PCl3(g)+ Cl2(g)at 298 K,Keq = 1.87 × 10-7,ΔrS° = 181.92 J/mol K.Compute ΔrH° for this reaction.

The change in Gibbs energy for a reaction:

A zero ΔG means the system is at equilibrium.

If a process is spontaneous,the reverse process is non spontaneous.

For a given reaction,ΔrH = -26.6 kJ mol-1 and ΔrS = -77.0 J K-1 mol-1.The reaction is spontaneous ________.Assume that ΔrH and ΔrS do not vary with temperature.

What is ΔrG°?

Which material has the largest entropy?

What is ΔrG° at 25 °C? N2O4(g)→ 2 NO2(g)ΔrH° = 58.03 kJ ΔrS° = 176.7 J/K

For CdO(s)+ SO3(g)→ CdSO4(s),ΔrH° = -279.4 kJ/mol,and ΔrS° = -118.4 J/mol ∙ K.What is the temperature at which Keq is 1.0 × 104?

For CO(g)+ H2(g)→ H2CO(g),ΔrH° = -5.36 kJ/mol,and ΔrS° = -109.8 J/mol K.What is ΔrG° in kJ/mol at 300 K?

In a sealed container,the rate of dissolving is equal to the rate of crystallization.Therefore we would expect:

Which of the following has the largest molar entropy?

Order the following by increasing entropy. CO(g),COCl2(g),CO2(g),CaO(s)

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The value of Δ_fG at 100.0 °C for the formation of phosphorus trichloride from its constituent elements, (g)+ (g)→ (g) Is ________ kJ mol^-1.At 25.0 °C for this reaction,Δ_fH° is -720.5 kJ mol^-1 and Is .

Calculate the entropy change for methanol at its normal boiling point of 64.5 °C.Δ_rH° = 38.0 kJ/mol.

Consider the following reaction: What is K_eq for this reaction at 25 °C?

For the reaction SO₂(g)+ Cl₂(g)→ SO₂Cl₂(g)K_eq = 0.377 at 25 °C,what is Δ_rG° for the reaction?

Consider the reaction: AB(g)? A(g)+ B(g) What is K_eq for this reaction at 425 K?

What is Δ_rG° at 25 °C? CO₂(g)→ CO₂(aq)Δ_rH° = -19.4 kJ Δ_rS° = 92.3 J/K

Consider the following reaction: What is Δ_rS° for the above reaction in J/mol K?

For the reaction PCl₅(g)→ PCl₃(g)+ Cl₂(g)at 298 K,K_eq = 1.87 × 10^-7,Δ_rS° = 181.92 J/mol K.Compute Δ_rH° for this reaction.

For a given reaction,Δ_rH = -26.6 kJ mol^-1 and Δ_rS = -77.0 J K^-1mol^-1.The reaction is spontaneous ________.Assume that Δ_rH and Δ_rS do not vary with temperature.

What is Δ_rG°?

What is Δ_rG° at 25 °C? N₂O₄(g)→ 2 NO₂(g)Δ_rH° = 58.03 kJ Δ_rS° = 176.7 J/K

For CdO(s)+ SO₃(g)→ CdSO₄(s),Δ_rH° = -279.4 kJ/mol,and Δ_rS° = -118.4 J/mol ∙ K.What is the temperature at which K_eq is 1.0 × 10⁴?

For CO(g)+ H₂(g)→ H₂CO(g),Δ_rH° = -5.36 kJ/mol,and Δ_rS° = -109.8 J/mol K.What is Δ_rG° in kJ/mol at 300 K?

Order the following by increasing entropy. CO(g),COCl₂(g),CO₂(g),CaO(s)