4.5.2 - Influence of Temperature on Spontaneity
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Practice Questions
Test your understanding with targeted questions
What does a negative ΔG value indicate about a reaction?
💡 Hint: Think about the meaning of spontaneity in chemical reactions.
What is the formula for Gibbs Free Energy?
💡 Hint: Remember the components contributing to Gibbs Free Energy.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the condition for a reaction to be spontaneous?
💡 Hint: Remember the Gibbs Free Energy criterion.
True or False: Positive ΔH and negative ΔS can lead to spontaneous reactions at any temperature.
💡 Hint: Think about the relationship between enthalpy and entropy.
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Challenge Problems
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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.
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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