5.2.2- Enthalpy and Entropy Flashcards
0
Q
How do you calculate the entropy change
A
Total entropy of products minus total entropy of reactants
1
Q
Define entropy (S)
A
The quantitated measure of the degree of disorder of a system (occurs as systems become more energetically stable with increasing disorder)
2
Q
What makes a process spontaneous
A
A process is spontaneous if a chemical system becomes more stable and its overall energy decreases
3
Q
Define free energy
A
The free energy change is the balance between enthalpy entropy and temperature for a process. A process can take place spontaneously when Delta G is less than zero
4
Q
Give the free energy equation
A
^G=^H-T^S
^=delta
Remember temperature must be given in Kelvin
