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Free Energy & Equilibrium (College)

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Free Energy & Equilibrium

1. 
Which of the following correctly represents the relationship between the free energy change for a reaction at 1 atm and K?
  1. ∆Gº=RTln(K)
  2. ∆Gº=-RT/ln(K)
  3. ∆Gº=R/Tln(K)
  4. ∆Gº=-RTln(K)
 
2. 
Which of the following correctly represents when the equilibrium point occurs?
  1. When the value of ∆Gº=1, only
  2. When the value of ∆Gº<0, only
  3. When the value of ∆Gº>0, only
  4. At the lowest value of free energy available to the system
3. 
Which of the following equations correctly represents the equation for free energy for a reaction that is NOT at equilibrium?
  1. ∆Gº=-RTlnK
  2. ∆G=∆Gº+RTln(Q)
  3. ∆G=∆Gº-RTln(Q)
  4. ∆G=∆Gº-RT/ln(Q)
 
4. 
Which of the following equations correctly describes a system that is at equilibrium?
  1. ∆G<0 and K=Q
  2. ∆G>0 and K=Q
  3. ∆G=0, only
  4. ∆G=0 and K=Q
5. 
Which of the following values is the value for ∆Gº, assuming that K>1?
  1. ∆Gº<0
  2. ∆Gº>0
  3. ∆Gº=0
  4. ∆Gº=1
 
6. 
Which of the following is the value of ∆Gº, assuming that K=1?
  1. ∆Gº>0
  2. ∆Gº<0
  3. ∆Gº=0
  4. ∆Gº=1
7. 
Which of the following correctly represents ln(K), in terms of temperature?
  1. [math]ln(K)={-∆Hº}/{RT}-{∆Sº}/{R}[/math]
  2. [math]ln(K)={∆Hº}/{RT}-{∆Sº}/{R}[/math]
  3. [math]ln(K)={∆Hº}/{RT}+{∆Sº}/{R}[/math]
  4. [math]ln(K)={-∆Hº}/{RT}+{∆Sº}/{R}[/math]
 
8. 
Which of the following represents ∆Gº, in terms of temperature?
  1. [math]∆Gº=∆Hº+T∆Sº[/math]
  2. [math]∆Gº=∆Hº-T∆Sº[/math]
  3. [math]∆Gº=∆Hº-T/{∆Sº}[/math]
  4. [math]∆Gº=-∆Hº-T∆Sº[/math]
9. 
When ln(K) increases, temperature tends to                       .
 
10. 
Derive the expression for ∆Gº, based on the expression for ln(K).




















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