Answer
The law of mass action describes the equilibrium condition, saying that the concentrations of the products, divided by the concentrations of the reactants, all to the power of their respective coefficients, are equal to a constant (K).
No, K is not affected by the amount of reactant and products at the beginning. K has a fixed value at a certain temperature.
No, equilibrium is not directly related to the rate of a reaction.
Yes, since temperature (or heat) is a factor that changes equilibrium depending on whether the reaction is an exothermic or endothermic, K will change at any different given temperature. So for each value of T, we have a different K.
Work Step by Step
See Section 12-2