Practice Understanding The Relationship (6.4.3)

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6 sample questions

Question 1.
What does a negative ΔG indicate about a chemical reaction?
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Think about spontaneity versus non-spontaneity.
Question 2.
What happens to K when a reaction is exothermic?
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Consider the reaction's heat behavior.
3Question 3.
What signifies a spontaneous reaction when ΔG is:
- Positive
- Negative
- Zero
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Remember the meaning of negative values.
4Question 4.
At equilibrium, K equals 1. What does this indicate about ΔG?
- True
- False
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Think about equality in concentrations.
Question 5.
Given that ΔG° for a certain endothermic reaction is +5.2 kJ at 298 K, calculate the equilibrium constant K.
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Make sure to convert units before calculating K.
Question 6.
If K for a reaction is 0.50 and the reaction is exothermic, what happens to K if the temperature is raised? Explain your reasoning.
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Consider Le Chatelier's Principle and how temperature affects reaction direction.

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