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Which of the following reactions has a positive ΔG at standard conditions?
Which of the following reactions has a positive ΔG at standard conditions?
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Practice Questions
1 question
Q1
Which of the following reactions has a positive ΔG at standard conditions?
Combustion of glucose
Formation of water from hydrogen and oxygen
Dissolution of salt in water
Decomposition of hydrogen peroxide
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The decomposition of hydrogen peroxide is non-spontaneous under standard conditions, resulting in a positive ΔG.
Questions & Step-by-step Solutions
1 item
Q
Q: Which of the following reactions has a positive ΔG at standard conditions?
Solution:
The decomposition of hydrogen peroxide is non-spontaneous under standard conditions, resulting in a positive ΔG.
Steps: 5
Show Steps
Step 1: Understand what ΔG means. ΔG is the change in free energy of a reaction.
Step 2: Know that a positive ΔG indicates a non-spontaneous reaction under standard conditions.
Step 3: Identify the reaction in question, which is the decomposition of hydrogen peroxide (H2O2).
Step 4: Recognize that the decomposition of hydrogen peroxide does not occur spontaneously under standard conditions.
Step 5: Conclude that since the reaction is non-spontaneous, it has a positive ΔG.
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