Consider the reaction:
2H2S(g)⇌2H2(g)+S2(g)
An equilibrium mixture of this reaction at a certain temperature was found to have [H2S]= 0.542M , [H2]= 2.64×10−2M , and [S2]= 7.54×10−3M .
What is the value of the equilibrium constant at this temperature?