3.5.2 - Relation between EMF and Gibbs Free Energy
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Practice Questions
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What is the formula relating EMF and Gibbs Free Energy?
💡 Hint: Look for the equation that involves EMF and energy change.
Define EMF.
💡 Hint: Think about what motivates the flow of electrons in a cell.
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Interactive Quizzes
Quick quizzes to reinforce your learning
If a reaction is spontaneous, what must be true about its EMF?
💡 Hint: Think about the implications of ΔG being negative.
What is Faraday’s constant?
💡 Hint: Consider the charge of a single mole of electrons.
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Challenge Problems
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Determine the Gibbs free energy change for a galvanic cell that has 3 moles of electrons transferred and an EMF of 0.75 V.
💡 Hint: Use the formula ΔG = -nFE_cell thoughtfully, paying close attention to units.
How would a change in temperature affect the spontaneity of a redox reaction if an electrochemical cell operates at a constant pressure?
💡 Hint: Think about how temperature affects the charge dynamics of particles.
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