13.3 Flashcards
1
Q
What is indicated by a positive enthalpy?
A
reaction is endothermic
2
Q
What is indicated by a negative enthalpy?
A
reaction is exothermic
3
Q
What is the Gibbs Free energy equation?
A
DeltaG = DeltaH - T*DeltaS
4
Q
What is the DeltaG linked with?
A
DeltaG is linked to the spontaneity of the reaction
5
Q
What is Delta G is positive/negative?
A
Positive: nonspontaneous/ and solute doesn’t dissolve
Negative: spontaneous/ does dissolve
6
Q
What is change enthalpy a measure of?
A
heat flow in and out of the equation
7
Q
T Delta S
A
temperature dependent entropy
8
Q
What is entropy?
A
randomness of the molecule
9
Q
How do you predict the solubility according to structure?
A
Look at the chemical structure and decide what compund is more polar, electronegative, and can form more hydrogen bonds.
