4.5.1 - Criteria for Spontaneity
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Practice Questions
Test your understanding with targeted questions
What does ΔG < 0 signify in a reaction?
💡 Hint: Recall the definition of spontaneity.
What happens at equilibrium concerning ΔG?
💡 Hint: Think about the balance of reactants and products.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does a negative Gibbs free energy change indicate?
💡 Hint: Remember the basic criterion of spontaneity.
True or False: A reaction is non-spontaneous when ΔG is greater than zero.
💡 Hint: Think about the meaning of spontaneity in chemical reactions.
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Challenge Problems
Push your limits with advanced challenges
Given a reaction with ΔH = -200 kJ/mol and ΔS = 300 J/K·mol, calculate ΔG at 298 K and determine spontaneity.
💡 Hint: Remember to align units.
Explain situations where increasing temperature switches a reaction from non-spontaneous to spontaneous, giving examples.
💡 Hint: Use the melting of ice as a practical example.
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