Thermodynamics

Question 1

entropy, S

Answer 1

thermodynamic state function measuring disorder

Question 2

disorder

Answer 2

randomisation of positions and motions of particles; dispersal of energy

Question 3

Second Law of Thermodynamics

Answer 3

Spontaneous processes always increase universe entropy; at equilibrium, processes leave universe entropy unchanged

Question 4

Third Law of Thermodynamics

Answer 4

absolute zero for entropy; the most ordered imaginable state is a perfect crystal at the lowest possible temperature 0K

Question 5

Gibbs Energy

Answer 5

G=H-TS; maximum energy free to do useful work

Question 6

driving force

Answer 6

generation of entropy in either (or both) the system or the surroundings which drives the reaction