5.6 - Spontaneity
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Practice Questions
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Define spontaneity in your own words.
💡 Hint: Think about processes that happen without needing intervention.
What does an increase in entropy indicate about a system?
💡 Hint: Consider states of matter—how do solids compare to liquids?
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Interactive Quizzes
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What does it mean when ΔG < 0?
💡 Hint: Recall the Gibbs Free Energy equation.
Entropy can be understood as a measure of what?
💡 Hint: Is higher entropy associated with more or less organization?
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Challenge Problems
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How does an increase in temperature affect the spontaneity of reactions that have a positive change in entropy?
💡 Hint: Consider the relationship between temperature and entropy in the Gibbs equation.
A reaction has ΔH = -60 kJ and ΔS = -200 J/K. Calculate the temperature at which this reaction would be spontaneous.
💡 Hint: What happens to spontaneity when ΔH and ΔS are both negative?
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