Gibbs free energy

Question 1

Define free energy change (Change G)

Answer 1

overall energy change in a reaction

Question 2

Define enthalpy change (change H)

Answer 2

the heat transfer between the chemical system and the surroundings

Question 3

Define the entropy change at the temperature of the reaction (T X change S)

Answer 3

the dispersal of energy within the chemical system itself

Question 4

Gibbs free energy equation

Answer 4

Change G = change H - T(k) X change S

Question 5

For a reaction to be feasible

Answer 5

Change G < 0

a decrease in free energy

Question 6

Limitations of prediction feasibility

Answer 6

Reaction may not happen if Large activation energy required

is not a prediction of rate of reaction