Unit 9: Applications of Thermodynamics

∆G

Gibbs Free Energy

∆S

Entropy

standard conditions

25 celsius, 1 atm, 1 M

positive ∆G

not TFP

-∆G

TFP

gas constant

8.31 j/mol*k

Galvanic cells use _____ to generate current

redox reactions

Electrolytic cells use _____ to generate current

outside voltage sources

oxidation takes place at the ____ electrode

anode

reduction takes place at the _____ electrode

cathode

Faraday’s Constant value

96,500 coulombs/mol

cell total potential is always ____

negative

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 ____

positive

Positive ∆S is ____

TFP

Negative ∆S value is ____

Not TFP

Gibb’s Free Energy Units

kj/mol*K

Entropy units

j/mol*K

T units

kelvin

negative ∆G, K >1, reaction favors ____

products

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

reactants