When aqueous solutions of table salt and silver nitrate are mixed a white solid forms. this solid

When aqueous solutions of table salt and silver nitrate are mixed a white solid forms. This solid is called a precipitate. A precipitate is an insoluble solid that emerges from a liquid solution. The process of forming this solid is called precipitation. 

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.

The answer is 65.3312