
Gibbs Free Energy

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•
Chemistry
•
12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is Gibbs Free Energy?
Back
Gibbs Free Energy (G) is a thermodynamic potential that measures the maximum reversible work obtainable from a thermodynamic system at constant temperature and pressure.
2.
FLASHCARD QUESTION
Front
What does a negative ΔG indicate about a reaction?
Back
A negative ΔG indicates that a reaction is spontaneous under standard conditions.
3.
FLASHCARD QUESTION
Front
What does a positive ΔG indicate about a reaction?
Back
A positive ΔG indicates that a reaction is non-spontaneous under standard conditions.
4.
FLASHCARD QUESTION
Front
What is the relationship between ΔG, ΔH, and ΔS?
Back
The relationship is given by the equation ΔG = ΔH - TΔS, where ΔG is Gibbs Free Energy, ΔH is enthalpy change, T is temperature in Kelvin, and ΔS is entropy change.
5.
FLASHCARD QUESTION
Front
What is the standard state of a substance?
Back
The standard state of a substance is its most stable form at 1 bar of pressure and a specified temperature, usually 25°C.
6.
FLASHCARD QUESTION
Front
What is entropy?
Back
Entropy (S) is a measure of the disorder or randomness in a system.
7.
FLASHCARD QUESTION
Front
How does temperature affect Gibbs Free Energy?
Back
As temperature increases, the term TΔS becomes more significant, which can affect the spontaneity of a reaction.
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