6.4.1 - Standard Gibbs Free Energy Change (ΔG°)
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Practice Questions
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What does a negative ΔG° indicate about a reaction?
💡 Hint: Think about whether energy is needed for the reaction to occur.
What is the equation relating ΔG° and K?
💡 Hint: Remember the variables involved in the equation.
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Interactive Quizzes
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What happens when ΔG° is negative?
💡 Hint: Think about spontaneous processes.
If ΔG° is positive, what can be said about K?
💡 Hint: Consider how spontaneity relates to reactant concentration.
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Challenge Problems
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For the reaction 2H₂(g) + O₂(g) ⇌ 2H₂O(g), it was found that at 298 K, ΔG° = -237.1 kJ. Calculate Kp for this reaction at this temperature.
💡 Hint: Ensure unit conversion consistency and use properties of logarithms.
Discuss how an increase in temperature would alter the value of K for the reaction N₂(g) + 3H₂(g) ⇌ 2NH₃(g) (ΔH° = -92.4 kJ).
💡 Hint: Think about how temperature affects heat in chemical reactions.
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