The Two Equilibrium Constants for the Same Reaction, K_c and K_p

Multiple Choice

The two equilibrium constants for the same reaction, K_c and K_p, will always equal one another when

A) all of the reactants and products are gases.
B) in the reaction equation, the number of moles of gaseous products equals the number of moles of gaseous reactants.
C) in the reaction equation, the number of moles of gaseous products is greater than the number of moles of gaseous reactants.
D) in the reaction equation, the number of moles of gaseous products is smaller than the number of moles of gaseous reactants.
E) in the reaction equation, the total number of moles of reactants equals that of the products.