PLS HELP NO LINKS PLS Fill in the blank. One chlorine atom from one molecule of chlorofluorocarbon can destroy up to ozone molecules.
100
100,000
10,000
50

Spontaneity tell us the direction of the reaction, but not how fast it goes. gibbs free energy brings together enthalpy, entropy and temperature in one easy formula. g = h - ts. and, finally the sign of delta g is always negative for a spontaneous reaction.