Which description best characterizes the motion of particles in a solid?
o slow but able to move past one another
o fast and widely spaced
o not moving
o víbrating around fixed positions

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.

Sorry i dont understand the question can you rephase it?