GENERAL KNOWLEDGE

Detailed explanation-1: -It is greater than zero. Explanation: If Q is greater than K, the reaction has exceeded the equilibrium state. It will proceed nonspontaneously (since equilibrium has already been reached), and this must mean that the G (gibbs free energy) must be positive, or greater than zero.

Detailed explanation-2: -If G=0, the system is at equilibrium. If G>0, the process is not spontaneous as written but occurs spontaneously in the reverse direction, until it reaches equilibrium.

Detailed explanation-3: -It is determined that spontaneous reactions are combustion processes by the interaction of decreasing energy and increasing entropy. If the Gibbs Free Energy is negative, the reaction is random; if it is positive, the reaction is non-spontaneous.

Detailed explanation-4: -So, yes negative means a spontaneous reaction.