CL 22- entropy Flashcards
1
Q
entropy
definition
A
the greater the entropy, the greater the dispersal of energy and the greater the disorder
2
Q
units for entropy
A
J/K/mol
3
Q
entropy trend going from solid to liquid to gas
A
entropy increases going from solid to gas as the particles become more disordered
4
Q
equation to calculate ΔS
A
ΔS = entropy of products - entropy of reactants
5
Q
gibbs-free energy equation
A
ΔG= ΔH - TΔS
6
Q
when is a reaction feasible?
A
feasible when ΔG< or equal to 0
state this in an exam question
7
Q
limitations of predictions made about ΔG and feasibility
A
- reaction may not take place
- as activation energy too high
- leading to a slow rate
