thermodynamics

Question 1

entropy of surroundings equation

Answer 1

-ΔH/T = ΔS Surroundings

Question 2

Gibbs equation

Answer 2

ΔG = ΔH - TΔS(sur)

Question 3

thermochemical definition

Answer 3

quantity used to define whether a reaction tends to go and how far it will go. If negative, reaction is feasible

Question 4

what is a spontaneous reaction

Answer 4

ΔS(tot) is positive for spontaneous

a process which occurs without input of matter or electrical energy into the system

Question 5

Table of reaction type

Answer 5

EXO - INC - (-) FEASIBLE
EXO - DEC - (+) - FEASIBLE IF ΔH > TΔS
ENDO - INC - (+) - FEASIBLE IF ΔH < TΔS
ENDO - DEC - (+) - NOT FEASIBLE

Question 6

what is standard molar entropy

Answer 6

the entropy or degree of randomness of one mole of a sample under standard state conditions

Question 7

Total entropy equation

Answer 7

ΔH(tot) = ΔS(sur) + ΔS(sys)

Question 8

entropy of a system equation

Answer 8

ΔS(sys) = S(prod) - S(reac)

Question 9

what are the conditions for Gibbs to work

Answer 9

needs to be negative

want the exothermic to be more negative than system