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In which scenario would ΔG be equal to ΔH?
In which scenario would ΔG be equal to ΔH?
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Practice Questions
1 question
Q1
In which scenario would ΔG be equal to ΔH?
At absolute zero.
When ΔS = 0.
For a spontaneous reaction.
For an endothermic reaction.
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ΔG equals ΔH when the entropy change (ΔS) is zero, indicating no change in disorder.
Questions & Step-by-step Solutions
1 item
Q
Q: In which scenario would ΔG be equal to ΔH?
Solution:
ΔG equals ΔH when the entropy change (ΔS) is zero, indicating no change in disorder.
Steps: 6
Show Steps
Step 1: Understand what ΔG means. ΔG is the change in free energy of a system.
Step 2: Understand what ΔH means. ΔH is the change in enthalpy, or total heat content, of a system.
Step 3: Know what ΔS means. ΔS is the change in entropy, which measures the disorder or randomness in a system.
Step 4: Recognize the relationship between ΔG, ΔH, and ΔS. The equation is ΔG = ΔH - TΔS, where T is the temperature in Kelvin.
Step 5: Identify when ΔG equals ΔH. This happens when ΔS is zero, meaning there is no change in disorder.
Step 6: Conclude that if there is no change in disorder (ΔS = 0), then ΔG will equal ΔH.
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