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# Entropy

### cava chem 303 s2d57 5.12 Entropy and Free Energy

The K12 lessons define [...] as the tendency of any system to move toward maximum randomness. The K12 lessons define entropy as the tendency of any system to move toward maximum randomness.
Entropy is really energy that can not be used to do any [..]. Entropy is really energy that can not be used to do any work.
The symbol for Entropy is a [...]. The symbol for Entropy is a capital S.
A [...] entropy change means that entropy has increased. A positive entropy change means that entropy has increased.
a liquid has [more/less] entropy than a solid a liquid has more entropy than a solid
Entropy and Enthalpy determine whether a reaction is [...] or not. Entropy and Enthalpy determine whether a reaction is spontaneous or not.
solid -> liquid -> gas : entropy [-es] solid -> liquid -> gas : entropy increases
break something into smaller pieces: entropy [-es] break something into smaller pieces: entropy increases
speed up movement of particles: entropy [-es] speed up movement of particles: entropy increases
increase the number of substances: entropy [-es] increase the number of substances: entropy increases
a [...] entropy change favors a spontaneous reaction, but enthalpy is also a factor a positive entropy change favors a spontaneous reaction, but enthalpy is also a factor
Gibb's [...] energy combines the changes in both enthalpy and entropy Gibb's free energy combines the changes in both enthalpy and entropy
A [...] change in Gibb's free energy means the reaction will be spontaneous. A negative change in Gibb's free energy means the reaction will be spontaneous.
Created by: mr.shapard