Entropy A. the free energy (G) indicates a spontaneous From the three states of matter process In a spontaneous prosses B. J/K The.IS units for entropy are C. in a spontaneous process SUniv>0 According to the second law of thermodynamics D. is 0K When one mole of sodium chloride is formed in E, there is a remanent of energy available to perform work. standard conditions at 298K,411.2KJ of heat are released to the surroundings: F. the gas state is the one of larger entropy. The combustion of a liquid fuel is an exothermic G. Hence, the entropy of the surrounding increases process where the entropy of the system 138.0J/K increases. H. Hence, the entropy of the system increases 99.1J/K The temperature of a perfect crystal where all the atoms are static in a perfectly defined location Lhas to do with the number of energy microstates in a When negative, system. When one mole of mercury evaporates at the normal boiling temperature of 356.7C its entropy changes from 75.9J/K in the liquid phase to 175J/K in the gas phase