A chunk of Sulfur, mined from an active volcano in Indonesia, has a mass of 12 grams. It displaces 6 milliliters of water when carefully lowered into a graduated cylinder (this is how much space it takes up). What is the density of Sulfur?

The answer is c fish

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.