O - Entropy Flashcards
1
Q
definition of entropy:
A
the measure of disorder in a system
∆Hs
2
Q
do systems move to high or low entropy naturally?
A
high entropy
eg diffusion
3
Q
what does a positive ∆s indicate?
A
the products are more disordered then reactants
4
Q
what does a negative ∆s indicate?
A
the products are less disordered then reactants
5
Q
how can entropy change be calculated?
A
by adding the entropy of reactants and taking it away from the entropy of products
6
Q
how do you calculate the entropy change of a system?
A
∆s = ∆sysS + ∆surrS
for reaction to be feasable ∆S must be positive
7
Q
how do you calculate the entropy change of surroundings?
A
∆H
∆surrS = - ——
T
