Practice Calculating K From Δg° Or Vice Versa (6.4.5)

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6 sample questions

Question 1.
What does a negative ΔG° indicate?
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Consider the direction of spontaneity.
Question 2.
Define the term 'equilibrium constant'.
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Think about what happens at equilibrium.
3Question 3.
What does a negative ΔG° indicate?
- The reaction is non-spontaneous
- The reaction is spontaneous
- No significant change
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Focus on the definition of spontaneity.
4Question 4.
If K > 1, what does that suggest about the equilibrium?
- True
- False
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Think about what K signifies.
Question 5.
A reaction has ΔH° = -100 kJ/mol and ΔS° = 250 J/(K·mol). Calculate ΔG° at 400 K.
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Convert ΔH° to J and apply at the given temperature.
Question 6.
Given K = 0.025 at 298 K, calculate ΔG°. What does this suggest about the reaction's spontaneity?
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Find the value of ln K and work with the given values to derive ΔG°.

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