Which part of Darwin's theory of evolution may be used to describe the results of when lions prey on antelope? O natural selection
surival of the fittest
O adaptation to environment
O variation in species

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.