Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does a negative ΔG value indicate about a reaction?
💡 Hint: Think about the meaning of spontaneity in chemical reactions.
Question 2
Easy
What is the formula for Gibbs Free Energy?
💡 Hint: Remember the components contributing to Gibbs Free Energy.
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Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the condition for a reaction to be spontaneous?
- ΔG < 0
- ΔG > 0
- ΔG = 0
💡 Hint: Remember the Gibbs Free Energy criterion.
Question 2
True or False: Positive ΔH and negative ΔS can lead to spontaneous reactions at any temperature.
- True
- False
💡 Hint: Think about the relationship between enthalpy and entropy.
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Challenge Problems
Push your limits with challenges.
Question 1
A reaction has ΔH = -100 kJ/mol and ΔS = 300 J/(mol·K). At what temperature will this reaction change from spontaneous to non-spontaneous? Calculate T_eq.
💡 Hint: Ensure units for ΔH and ΔS match before dividing.
Question 2
If a reaction has a positive ΔH and a negative ΔS, assess its spontaneity across a range of temperatures from low to high.
💡 Hint: Think about the implications of the signs of ΔH and ΔS.
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