QUESTION $1$

At $525C,$ the equilibrium partial pressures for the substances in the reaction $2S{O}_2(g)+O_2(g)2S{O}_3(g)$ were:

$P_{SO3}=0\mathrm{.}0150$atm

$P_{SO2}=0\mathrm{.}253$atm

$P{O}_O=0\mathrm{.}365$atm

Calculate the concentration equilibrium constant $(K_C)$ for the reaction at this temperature. Enter your answer with no units.