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What is the significance of the Gibbs Free Energy in chemical thermodynamics?
What is the significance of the Gibbs Free Energy in chemical thermodynamics?
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Q1
What is the significance of the Gibbs Free Energy in chemical thermodynamics?
It predicts the direction of a reaction.
It measures the heat of reaction.
It indicates the concentration of reactants.
It determines the rate of reaction.
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Gibbs Free Energy is crucial for predicting the spontaneity and direction of a chemical reaction.
Questions & Step-by-step Solutions
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Q: What is the significance of the Gibbs Free Energy in chemical thermodynamics?
Solution:
Gibbs Free Energy is crucial for predicting the spontaneity and direction of a chemical reaction.
Steps: 5
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Step 1: Understand that Gibbs Free Energy (G) is a measure of the energy available to do work in a chemical system.
Step 2: Recognize that it combines two important factors: enthalpy (total energy) and entropy (disorder).
Step 3: Learn that a negative change in Gibbs Free Energy (ΔG < 0) indicates that a reaction can occur spontaneously.
Step 4: Realize that a positive change in Gibbs Free Energy (ΔG > 0) means the reaction is not spontaneous and will not occur without external energy.
Step 5: Understand that Gibbs Free Energy helps predict the direction of a reaction: whether it will proceed forward or backward.
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