I am given $$ \Delta H^{\circ} /$$ & $$ \Delta S^{\circ} /$$, and Temp (K)

I need to calculate $$ K_{p} /$$ at the given Temp (K).

I can solve for $$ \Delta G^{\circ} /$$

then use this this equation:

$$ \Delta G = \Delta G^{\circ} + RTlnQ /$$

I just set $$ \Delta G=0 /$$ & solve for "Q".

My question is, will this Q value = $$ K_{p} /$$ or $$ K_{c} /$$ ?