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TBR GC Book II page 137 Example 8.3
“A reaction that is spontaneous in the forward direction corresponds with which of the following features??
Correct: It has a ratio of Q(of reaction) to Keq that is less than 1.
Incorrect: It has an equilibrium constant that is greater than 1.0.
I get that some reactions with a Keq < 1 are spontaneous (I think water dissociating into H and OH would be an example).
But I’m confused when I try to apply it to an equation. For example, what if you are at standard conditions where deltaG° = -RTln(Keq). In this scenario, doesn’t K have to be greater than 1 in order for deltaG° to be negative?
If someone could explain clearly when to use deltaG° and when to use deltaG?
“A reaction that is spontaneous in the forward direction corresponds with which of the following features??
Correct: It has a ratio of Q(of reaction) to Keq that is less than 1.
Incorrect: It has an equilibrium constant that is greater than 1.0.
I get that some reactions with a Keq < 1 are spontaneous (I think water dissociating into H and OH would be an example).
But I’m confused when I try to apply it to an equation. For example, what if you are at standard conditions where deltaG° = -RTln(Keq). In this scenario, doesn’t K have to be greater than 1 in order for deltaG° to be negative?
If someone could explain clearly when to use deltaG° and when to use deltaG?
