Unit 9: Applications of Thermodynamics

∆G

∆G

Gibbs Free Energy

∆S

Entropy

standard conditions

25 celsius, 1 atm, 1 M

positive ∆G

not TFP

-∆G

TFP

8.31 j/mol*k

gas constant

redox reactions

Galvanic cells use _____ to generate current

outside voltage sources

Electrolytic cells use _____ to generate current

anode

oxidation takes place at the ____ electrode

cathode

reduction takes place at the _____ electrode

Faraday’s Constant value

96,500 coulombs/mol

negative

cell total potential is always ____

positive

if a reaction goes from less moles reactants to more moles products, the ∆S values is ____

positive

If a reaction goes from liquid to gas, the ∆S value is ____

TFP

Positive ∆S is ____

Not TFP

Negative ∆S value is ____

Gibb’s Free Energy Units

kj/mol*K

Entropy units

j/mol*K

T units

kelvin

products

negative ∆G, K >1, reaction favors ____

reactants

If ∆G is positive, K < 1, reaction favors ____