Free-Energy Change Flashcards
1
Q
What happens is deltaG is negative or zero?
A
The reaction will happen by itself
2
Q
What is the equation for free-energy change?
A
deltaG = deltaH -TdeltaSsystem
3
Q
What value is deltaG if the reaction is exo and has a positive entropy?
A
Negative - reaction is feasible at any temp
4
Q
What value is deltaG is the reaction is endo and has a negative entropy?
A
Positive - reaction isn’t feasible
5
Q
What happens if deltaH and deltaS are positive?
A
Reaction only feasible at high temps
6
Q
What happens is deltaH and deltaS are negative?
A
Reaction only feasible at low temps
7
Q
How do you find the temperature when deltaG = 0?
A
T = deltaH
——–
deltaS
8
Q
What is deltaG?
A
Measure used to predict whether a reaction is feasible
