Podcast
Questions and Answers
What is the change in entropy for the given reaction?
What is the change in entropy for the given reaction?
- 56.5 J/K
- 186.8 J/K
- -130 J/K (correct)
- -138.1 J/K
What is the standard enthalpy change for the reaction?
What is the standard enthalpy change for the reaction?
- -92.31 kJ/mol
- -467.0 kJ/mol (correct)
- 0 kJ/mol
- -167.080 kJ/mol
Which value represents the Gibbs free energy at a temperature of 20°C?
Which value represents the Gibbs free energy at a temperature of 20°C?
- 263 C (correct)
- -693 C
- 693 C
- -263 C
What is the change in Gibbs free energy for the given reaction at 25°C?
What is the change in Gibbs free energy for the given reaction at 25°C?
At what temperature does the change in enthalpy equal -149.54 kJ?
At what temperature does the change in enthalpy equal -149.54 kJ?
For a spontaneous reaction, what combination of changes in entropy and enthalpy would typically be observed?
For a spontaneous reaction, what combination of changes in entropy and enthalpy would typically be observed?
What is the Gibbs Free Energy value for the given reaction 𝑴𝒈+𝟐 (𝒂𝒒) + 𝑯𝑪𝒍 (𝒈) → 𝑴𝒈+𝟐 (𝒂𝒒)+ 𝟐𝑪𝒍− (𝒂𝒒) + 𝑯𝟐 (𝒈) at 20 degrees Celsius?
What is the Gibbs Free Energy value for the given reaction 𝑴𝒈+𝟐 (𝒂𝒒) + 𝑯𝑪𝒍 (𝒈) → 𝑴𝒈+𝟐 (𝒂𝒒)+ 𝟐𝑪𝒍− (𝒂𝒒) + 𝑯𝟐 (𝒈) at 20 degrees Celsius?
Which class of reaction is characterized by having a positive Gibbs Free Energy value?
Which class of reaction is characterized by having a positive Gibbs Free Energy value?
What does a negative Gibbs Free Energy value imply for a process?
What does a negative Gibbs Free Energy value imply for a process?
In which direction does energy flow in a reaction with a negative Gibbs Free Energy value?
In which direction does energy flow in a reaction with a negative Gibbs Free Energy value?
What is the formula to calculate the change in Gibbs Free Energy (△G) for a system?
What is the formula to calculate the change in Gibbs Free Energy (△G) for a system?
Which parameter can be used to classify reactions based on the change in free energy of the reaction?
Which parameter can be used to classify reactions based on the change in free energy of the reaction?
Which formula is used to calculate Gibbs Free Energy?
Which formula is used to calculate Gibbs Free Energy?
In a spontaneous reaction, the Gibbs Free Energy value is typically:
In a spontaneous reaction, the Gibbs Free Energy value is typically:
What is the entropy change for the reaction: 2 Al(s) + 6 HCl(g) → 2 AlCl3(s) + 3 H2(s)?
What is the entropy change for the reaction: 2 Al(s) + 6 HCl(g) → 2 AlCl3(s) + 3 H2(s)?
Which of the following reactions is exergonic/exothermic?
Which of the following reactions is exergonic/exothermic?
Which of the following changes is associated with more randomness?
Which of the following changes is associated with more randomness?
What is the heat change (∆H) for the reaction: Al(s) + HCl(g) → AlCl3(s) + H2(g)?
What is the heat change (∆H) for the reaction: Al(s) + HCl(g) → AlCl3(s) + H2(g)?
