Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does ฮG < 0 signify in a reaction?
๐ก Hint: Recall the definition of spontaneity.
Question 2
Easy
What happens at equilibrium concerning ฮG?
๐ก Hint: Think about the balance of reactants and products.
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Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does a negative Gibbs free energy change indicate?
- The reaction is spontaneous
- The reaction is non-spontaneous
- The system is at equilibrium
๐ก Hint: Remember the basic criterion of spontaneity.
Question 2
True or False: A reaction is non-spontaneous when ฮG is greater than zero.
- True
- False
๐ก Hint: Think about the meaning of spontaneity in chemical reactions.
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Challenge Problems
Push your limits with challenges.
Question 1
Given a reaction with ฮH = -200 kJ/mol and ฮS = 300 J/Kยทmol, calculate ฮG at 298 K and determine spontaneity.
๐ก Hint: Remember to align units.
Question 2
Explain situations where increasing temperature switches a reaction from non-spontaneous to spontaneous, giving examples.
๐ก Hint: Use the melting of ice as a practical example.
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